EB-2 NIW 申请信——结构、示例段落与 AI 起草模板
The petition letter is the document that argues all three Matter of Dhanasar prongs to USCIS. Get the structure right, anchor every claim to a labeled exhibit, and the rest of your filing follows. $299 per petition — AI-drafted in 2 hours, edited in your browser, exported to Word/PDF for filing with Form I-140.
什么是 NIW 申请信？
The NIW petition letter is the central narrative document filed with Form I-140 that argues — to a USCIS officer — why the petitioner satisfies all three prongs of Matter of Dhanasar (AAO 2016). It is not optional, and it is not a form. It is the petitioner's brief.
NIW 申请信是与 I-140 表格一同递交的核心论证文件，向 USCIS 审案官说明为什么申请人满足 Matter of Dhanasar（2016）三步框架的全部要求。它不是表格，也不是可选项——它是申请人的"诉状"。
Structure matters more than prose. USCIS officers read hundreds of petition letters per cycle; clarity, prong-by-prong organization, and disciplined exhibit linking determine whether the case reads as approvable on first review or earns an RFE. A successful NIW letter typically runs 15–30 pages.
We do not publish a full sample petition letter on this page. The reason is concrete: USCIS officers recognize boilerplate. Filing a letter whose phrasing, structure, or evidence framing closely mirrors a public sample is a known RFE trigger, and the AAO has repeatedly noted that recycled language correlates with weak underlying evidence. Instead, this guide publishes the structure openly — and below, two short annotated sample sections — so you can produce a letter that is genuinely tailored to your endeavor and evidence. Visacub's $299 Self-Petition tier AI-drafts the full bespoke letter from your inputs.
Source: 26 I&N Dec. 884 (AAO 2016) — Matter of Dhanasar; INA §203(b)(2)(B); USCIS Policy Manual Vol. 6 Part F Ch. 5(D).
一封成功 NIW 申请信的标准结构
Six sections, in order. Each prong gets its own clearly labeled section — never interleave evidence across prongs.
六个章节，按顺序展开。每个 Prong 单独成章——切勿把证据跨 Prong 混用。
封面信 / 引言
1–2 pages
Identify the petitioner, the classification sought (EB-2 NIW), the proposed endeavor in one sentence, and a roadmap of the prong-by-prong argument.
标明申请人、申请类别（EB-2 NIW）、用一句话描述拟从事的事业，并给出三步论证的路线图。
事业描述
2–3 pages
Define the specific field, problem, and target outcome — concrete enough that a USCIS officer outside your discipline can grade Prongs 1 and 2 against it.
明确定义你的具体领域、要解决的问题、目标产出——要具体到 USCIS 审案官（即使不是你的领域）也能据此评判 Prong 1 和 Prong 2。
Prong 1 — 实质价值 + 国家重要性
3–6 pages
Argue the endeavor itself (not the petitioner) has substantial merit AND broader national importance. Anchor each claim to industry reports, government policy, news coverage, or peer-reviewed literature.
论证事业本身（不是申请人）具备实质价值，并且重要性达到国家层面。每一项主张都要有产业报告、政府政策、新闻报道或同行评议文献作支撑。
Prong 2 — 有能力推进该事业
4–8 pages
Show concrete momentum: education, publications, citations, patents, awards, employment history, prior funding, and independent recommendation letters tying each datum to advancing THIS endeavor.
展示具体势头：学历、发表、引用、专利、奖项、雇佣记录、过往资金、独立推荐信——每一项都要明确指向推进当前这项事业。
Prong 3 — 综合权衡 / 豁免理由
2–4 pages
Argue that, on balance, the U.S. benefits from waiving job-offer and PERM labor certification — typically because labor cert is impractical (no specific employer / mobile work / urgency) or harmful to the national interest.
论证综合权衡之下，豁免雇主担保和 PERM 劳工证对美国更有利——通常理由是 PERM 不切实际（没有特定雇主／工作流动性／紧迫性）或会损害国家利益。
结论与证据索引
1–2 pages
Summarize the prong-by-prong satisfaction in plain language, request approval, and reference the separately bound exhibit list (Exhibit 1, Exhibit 2 …) by number throughout the body.
用清晰语言总结三步论证的满足情况，请求批准，并在正文中以编号引用单独装订的证据清单（Exhibit 1、Exhibit 2 …）。
示例段落 —— 事业描述
Three short paragraphs from a fictional STEM-researcher case. Read for structure — name the field, the problem, and the target outcome with concrete metrics.
The petitioner's proposed endeavor is the development of low-power on-device machine-learning inference for medical imaging in primary-care clinics in the United States. Specifically, the petitioner's work targets convolutional and transformer-based segmentation models running under 50 milliwatts on commodity ARM hardware, enabling point-of-care diagnostic support for diabetic retinopathy and pulmonary nodule screening without cloud dependence.
This endeavor sits at the intersection of three U.S. national priorities: rural healthcare access (35 million Americans live in primary-care HPSAs per HRSA 2024), AI safety and on-device inference (NIST AI RMF 2024), and semiconductor competitiveness (CHIPS & Science Act 2022). The petitioner's work is not a generic "AI" project — it is a defined technical program with measurable target outcomes (model accuracy ≥ 0.92 AUROC, inference latency < 200 ms, energy budget < 50 mW) and a defined deployment context (FQHC primary-care clinics).
The petitioner will continue this endeavor in the United States via [employer / startup / postdoctoral appointment], with the explicit goal of producing peer-reviewed publications, open-source reference implementations, and FDA pre-submission technical documentation by Q4 2027. See Exhibit 3 (endeavor roadmap), Exhibit 4 (HRSA HPSA designation map), Exhibit 5 (NIST AI RMF excerpt), Exhibit 6 (CHIPS Act technical priorities).
What this does right
Anti-patterns to avoid
示例段落 —— Prong 2「有能力推进」论证
Two short paragraphs tying education + publications + citations + endorsements directly to the endeavor. Notice the narrative arc: every datum supports advancement of the specific endeavor, not generic credentials.
The petitioner is well-positioned to advance this endeavor based on a record of concrete technical and scholarly progress directly relevant to low-power on-device medical-imaging inference. The petitioner holds a PhD in Electrical & Computer Engineering from [University] (Exhibit 7), with a dissertation on quantization-aware training for sub-100mW inference accelerators that is directly methodologically continuous with the proposed endeavor. Across 14 peer-reviewed publications (Exhibit 8) — including 4 first-author papers in IEEE Transactions on Medical Imaging and the NeurIPS Medical Imaging workshop — the petitioner's work has accumulated 312 independent citations (Exhibit 9, Google Scholar export, retrieved [date]), with an h-index of 11.
Independent endorsements from five experts not affiliated with the petitioner's current employer further establish well-positioning. Dr. [Name], tenured professor of Biomedical Engineering at [Other University] and not a co-author of the petitioner, writes that the petitioner's 2024 IEEE TMI paper "is the first published demonstration of [specific technical claim] at clinically actionable accuracy under 50 mW" (Exhibit 10). Dr. [Name], former FDA reviewer (Exhibit 11), independently confirms that the petitioner's deployment trajectory is technically feasible and addresses a documented unmet primary-care diagnostic need. Together, these credentials, publications, citations, and independent endorsements demonstrate not merely capability in the abstract but specific momentum toward the proposed endeavor — satisfying Prong 2.
What this does right
Anti-patterns to avoid
常见陷阱与 RFE 触发因素
Six recurring failure patterns. Each one materially raises your odds of an RFE — and most are structural, not evidentiary.
事业描述过于笼统
'I work on AI research' or 'I conduct cancer research' is too broad. USCIS officers cannot grade Prong 1 national importance against an abstraction. Name the specific subfield, problem, and target outcome.
「我做 AI 研究」「我做癌症研究」太宽泛。审案官无法据此判断 Prong 1 的国家重要性。必须写明具体的子领域、要解决的问题和目标产出。
把个人成就当作事业本身的价值
Prong 1 grades the endeavor's merit independent of the petitioner. Letters that argue 'my research is important because I have many citations' confuse Prong 1 with Prong 2 and trigger RFEs.
Prong 1 评判的是事业本身（与申请人无关）的价值。「我的研究重要是因为我引用很多」这种写法把 Prong 1 和 Prong 2 混在一起，会触发 RFE。
Prong 2 缺少独立专家佐证
Recommendation letters only from your supervisor, advisor, or co-authors signal weakness. USCIS expects independent recommenders — tenured faculty in your field at other institutions, senior industry leaders not affiliated with your employer, recognized policy experts.
如果推荐信只来自你的导师、上司或合作者，说明 Prong 2 站不住。USCIS 希望看到独立推荐人——其他机构的本领域终身教授、与你雇主无关联的产业资深人士、知名政策专家。
Prong 3 薄弱——缺乏对比分析
Prong 3 fails most often when the letter simply asserts 'PERM is impractical' without explaining why FOR THIS PETITIONER. Strong Prong 3 sections compare the endeavor against the typical EB-2 PERM scenario and explain why labor cert would frustrate the national interest.
Prong 3 最常见的失败是只声明「PERM 不切实际」而不说明对当前申请人为何如此。强 Prong 3 会把当前事业与典型 EB-2 PERM 情形做对比，解释为什么 PERM 会损害国家利益。
篇幅过长导致审案疲劳
Petition letters over 40 pages signal undisciplined argument and tend to repeat. AAO opinions on NIW appeals frequently note that volume is not a substitute for evidence. Target 15-30 pages of tight prong-by-prong argument.
申请信超过 40 页会被视为论证缺乏取舍且重复。AAO 在 NIW 上诉裁决中多次指出：篇幅不是证据的替代品。目标是 15-30 页紧凑的三步论证。
套用模板 / 抄袭样本
Filing a letter that closely mirrors a public 'sample' — repeated phrasing, identical section transitions, generic endeavor descriptions — is a known RFE trigger. Officers recognize repeated language and conclude the petition is not bespoke to the petitioner.
递交与公开「样本」高度相似的申请信——重复的措辞、雷同的章节过渡、通用的事业描述——是已知的 RFE 触发因素。审案官能识别出重复语言，并判定申请没有针对申请人量身定制。
Visacub 如何为你生成 NIW 申请信
A structured intake captures your endeavor and evidence. The AI drafts a 15–25 page letter mapped to the Dhanasar 3-prong framework. You edit in the browser. You file pro se with Form I-140.
问卷收集
Structured form captures endeavor description, education, publications, citations, awards, employment history, and recommender list. Start with the free Dhanasar assessment.
AI 起草
15–25 pages with separate, labeled sections per Dhanasar prong. Each evidentiary claim links to a specific exhibit number from the auto-generated index.
编辑与导出
Review every numeric and named claim. Edit voice. Export to Word/PDF. File pro se with Form I-140. $299 per petition vs the typical $5,000+ immigration-attorney representation fee.
Visacub is self-help software — you prepare and file the petition yourself using its tools. Every petition is filed by the petitioner pro se. If you want attorney representation despite the self-petition allowance, you can hire a licensed U.S. immigration attorney independently. Visacub also generates a separate recommendation letter package for your independent recommenders.
Visacub 是自助软件——你用它的工具自己准备并递交申请。所有申请均由申请人 pro se 递交。如希望聘请律师代理，可单独委托持牌美国移民律师。Visacub 还会单独生成推荐信材料包供独立推荐人使用。
我们为什么不公开完整的申请信样本
Most online "NIW petition letter samples" are scraped boilerplate — recycled from older approved cases, generic template sites, or AI-generated stock filings. Filing a letter that closely mirrors public sample text is a documented RFE trigger. USCIS officers process petition letters at volume; repeated phrasing is one of the easiest patterns to spot, and the AAO has repeatedly noted that recycled language correlates with weak underlying evidence.
Successful NIW letters are bespoke to the petitioner's specific endeavor and evidence. They cannot be copied from anyone else. What can be shared safely is what this page does share: the structure, annotated short sample sections, and the anti-patterns to avoid. Visacub's AI generates a custom letter mapped to your endeavor, your evidence, and your recommenders — not a template fill-in.
网上绝大多数「NIW 申请信样本」都是抄袭拼凑——从旧案、模板站或 AI 生成的"通用"信件里复制而来。递交与公开样本高度雷同的申请信是已知的 RFE 触发因素。USCIS 审案官批量处理申请信，重复用语极易识别，AAO 多次指出：套话与弱证据高度相关。成功的 NIW 申请信必须为申请人本人量身定制——结构可以公开分享，具体内容不能复制。
常见问题
NIW 申请信应该包含哪些内容？
A successful EB-2 NIW petition letter must address all three prongs of Matter of Dhanasar with a clear structure: cover-letter introduction, endeavor description, separate sections for Prong 1 (substantial merit + national importance), Prong 2 (well-positioned), and Prong 3 (balance / waiver), plus a conclusion. Each evidentiary claim must reference a specifically labeled exhibit.
成功的 EB-2 NIW 申请信必须按 Matter of Dhanasar 的三步框架展开：封面信引言、事业描述、Prong 1（实质价值 + 国家重要性）、Prong 2（有能力推进）、Prong 3（综合权衡 / 豁免）各自独立成章，最后是结论。每一项证据主张都要明确引用对应编号的 Exhibit。
NIW 申请信应该写多长？
Typical successful letters run 15-30 pages of narrative argument plus a separate 100-300 page exhibit binder. Under 10 pages usually fails to develop all three prongs; over 40 pages risks officer fatigue. Visacub targets 18-25 pages by default.
典型的成功申请信正文 15-30 页，加上独立装订的证据集 100-300 页。少于 10 页一般无法把三步都论证清楚；超过 40 页会引起审案疲劳。Visacub 默认生成 18-25 页。
我可以自己写 NIW 申请信吗？
Yes. NIW is a self-petition category — many petitioners successfully file pro se. Visacub's $299 Self-Petition tier AI-drafts the full letter mapped to all three Dhanasar prongs and produces the I-140 form and exhibit index.
可以。NIW 是 self-petition 类别——很多申请人 pro se 成功递交。Visacub 的 $299 Self-Petition 档会按 Dhanasar 三步 AI 起草整封申请信，并生成 I-140 表格和证据索引。
网上有免费的 NIW 申请信样本吗？
Free samples on forums and template sites are usually scraped boilerplate. Filing a letter that closely mirrors a public sample is a known RFE trigger — USCIS officers recognize repeated phrasing. Study the structure (which Visacub publishes openly), then generate a letter customized to your evidence.
论坛和模板站的免费样本基本都是抄袭拼凑。递交与公开样本高度相似的申请信会触发 RFE——审案官能识别重复用语。建议研究结构（Visacub 公开），然后基于自己的证据生成定制化信件。
NIW 的 cover letter 和 petition letter 有什么区别？
In NIW practice the terms are often interchangeable. Technically the 'cover letter' is the 1-2 page introduction at the top of the petition letter; the full 'petition letter' is the entire 15-30 page document including the cover letter, prong arguments, and conclusion.
在 NIW 实务中两个词基本通用。严格说，「cover letter」指申请信开头的 1-2 页引言；「petition letter」指包含封面信、三步论证和结论在内的完整 15-30 页文件。
申请信需要分别论证三个 Prong 吗？
Yes. Interleaving prongs is the most common structural mistake. USCIS officers grade each prong independently. Each prong needs a clearly labeled section opening with a one-sentence statement of the standard, then proceeding through evidence.
需要。最常见的结构错误就是把三个 Prong 内容混着写。USCIS 是按 Prong 独立打分的。每个 Prong 都要单独成章，开头一句话陈述标准，然后逐项展开证据。
NIW 申请信由律师签还是申请人签？
The petition letter is filed under the petitioner's signature. Pro se / self-petition filings (including all Visacub-drafted letters) are on the petitioner's own letterhead and signed by the petitioner directly. No attorney signature is required.
申请信以申请人签名递交。pro se / 自申请（包括所有 Visacub 生成的信件）使用申请人本人的信头并由本人签字。不需要律师签名。
NIW 申请信最常见的 RFE 触发点是什么？
Vague endeavor framing; conflating personal achievement with endeavor merit (Prong 1); missing independent expert corroboration (Prong 2); weak Prong 3 with no comparative analysis; recommendation letters only from supervisors and co-authors; excessive length over 40 pages.
事业描述过于笼统；把个人成就与事业本身价值混淆（Prong 1）；缺少独立专家佐证（Prong 2）；Prong 3 没做对比分析；推荐信只来自上司和合作者；篇幅超过 40 页。
Visacub 如何生成 NIW 申请信？
A structured intake captures your endeavor, education, publications, citations, awards, employment, and recommenders. The AI generates a 15-25 page petition letter with separate labeled sections per Dhanasar prong, links each evidentiary claim to a specific exhibit number, and produces the Form I-140 and exhibit index. Edit in browser, export to Word/PDF.
结构化问卷收集你的事业、学历、发表、引用、奖项、工作经历、推荐人。AI 生成 15-25 页申请信，按 Dhanasar 三步分章节，每条证据主张关联具体 Exhibit 编号，并生成 I-140 表格和证据索引。浏览器内编辑，导出为 Word/PDF。
AI 起草的信能直接递交吗，还是需要编辑？
The AI draft is a strong first draft, not a finished filing. Every petitioner must verify factual accuracy (degrees, employers, publications, citation counts, dates) and adjust voice. Structural argument is generated correctly; petitioner-specific facts must be human-confirmed before export.
AI 起草的是高质量初稿，不是直接可递交的成稿。申请人必须核对事实准确性（学历、雇主、发表、引用数、日期）并调整语气。结构性论证由 AI 准确生成；与申请人相关的事实主张必须人工确认后才能导出。
生成你的 NIW 申请信 —— $299
Start with the free Dhanasar 3-prong assessment. If eligible, upgrade to the $299 Self-Petition tier and AI-draft your full petition letter mapped to all three prongs.