邀请信是邀请亲朋好友或知名人士、专家等参加某项活动时所发的请约性书信。它是现实生活中常用的一种日常应用写作文种。所以很多人不知道怎么去写，下面是出国留学网为大家整理邀请函模板供你参考。
父母一签过。毕业典礼邀请，顺便旅游。4月初，北京美国大使馆。P为父母; V为签证官。
问题如下：
P: 签证官你好。
V: 你们好。
V: 材料，邀请信?
P: 递进。
V: 儿子什么时候去美国的?
P: 200X 年。
V: 什么时候回来过?
P: 200X 年。
V: 照片?
V: 飞快翻过。
V: 几个孩子?
P: 独生子女。
V: 毕业之后有什么打算?
P: OPT。
V: 名字。
P: 核对。
通过。。。
一下是我的邀请信(Cover letter)，供新人参考：
March X, 2008
United States Embassy of Beijing
3 Xiu Shui Bei Jie
Beijing, 100600
China
Dear Sir/Madam:
I am writing to confirm that I invited Dr. XXX (Father) and Dr. XXX (Mother) to participate my commencement ceremony at University of XXX in XXX 200X.
I came to the United States in August 200X to pursue my PhD in XXX at the University of XXX. My research is academic in nature and is focused on XXX, such as XXX, which are XXX. After X years research and writing, my dissertation committee approved my graduation plan in XXX 200X.
My parents have provided tremendous support to me in the past Xyears and I would like to share the joy of PhD graduation with them. Moreover, I have planned a vacation across the United States with my parents to celebrate the graduation. Their itinerary in the United States will be the following:
1. XXXXX
2. X
3. X
4. X
5. X
My parents will depart from XXX back to China. The duration of this trip would range from 3 to 6 months. In the meantime, I will be a legal F1 student in Optional Practical Training (OPT). I have monthly salary of US$ XXX for my research assistantship and I have bank deposit of over US$ XXX. My parents will bring US$ XXX for the trip and I will cover the rest expenses.
My father has served as a XXX for over 30 years and he plan to retire in two years. My mother has been a professor in XXX for over 20 years before she retired about X years ago. Furthermore, my parents own real estate, stocks, bank savings, and have developed extensive professional and social ties in China. Both of them are persons of excellent character,
financially stable, and completely trustworthy.
I have enclosed the following documents to assist my parents’ visa application interview:
1. An official invitation letter to my commencement ceremony from the
International Scholar and Student Services of University of XXX;
2. Automatic payroll deposit to XXX Bank by XXX payroll in the past 12
months and representative pay stubs in 2007 and 2008;
3. Bank statement and online transaction history of XXX Bank, over
US$ XXX in cash;
4. Photocopies of my passport, latest I-94, latest student visa, and I-20
form;
5. Photocopies of my social security card, medical insurance card, and
driver’s license;
6. My Curriculum Vitae.
I wish they could be issued visitors’ visa for this trip. Please contact me if you need further information. Thank you for your consideration of this request.
Sincerely,
XXX
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