证明材料一般出自有关单位，文字应规范、严谨，并加盖有效印章。申请者应提供的证明材料主要有以下几种：
1 学历、学位证明，主要是大学、研究生毕业证书，硕士学位证书，博士学位证书；
2.成绩单，成绩单是任何申请人都必须提供的，我国大专院校的成绩评定大多采用百分制，而美国则以采用等级制为多，其平均值通常用平均成绩点数（GPA）表示，因此，必须注明所采用的记分方法，最好能提自己在班级所排名次，现在，美国大多数学校都要求申请者通过ETS直接提供TOEFL或GRE成绩：
3. 财力证明；
4. 体检表和健康证明，一般应由指定级别的医院出具；
5. 学业（术）奖励和工作证明，一般学校尽管不作要求，但获得过奖励和有过实际工作经验的申请者，在录取时必定会得到优先考虑，这一点在申请助教、助研及奖学金时尤为重要。
范例1 大学毕业证书
Let it be known that Mr. Wang Chumming, native of Shandong Province,born on January 17, 1962, having specialized in seismological geology inthe Geology Department of Changchun University from October, 1978 to July,1982 and having completed the four year undergraduate program withqualified standing, is hereby awarded this Certificate of Graduation.
范例2 研究生毕业证书
Mr. Kang Jiangrong was born in Hangzhou, Zhejiang Provincein April, 1968. From September 1985 to December 1989, he was apostgraduate student in our institute, majoring in Textile
Machinery, He fulfilled his study plan, and passed oral examination on his thesis in July 1989. He was allowed to graduate.
范例3 硕士学位证书
Certificate of Master Degree University of Shanghai
We the undersigned hereby certify that Mr. Jiang Shan having fulfilled the requirements of the Ordinances and Regulations of the University was by the University authority admitted to the Degree of Master of Science in Electronic Engineering at a Congregation held in the University on July 14, 1989.
范例4 国家教委出具的公费留学财力证明
PEOPLE'S REPUBLIC OF CHINA
TO Whom It May Concern:
This is to certify that Mr. Wan Li, born, June 17, 1960, a native of People's Republic of China, graduated from Tsinghua University, and he has been awarded a government scholarship by this commission for studying abroad.
The scholarship is for two academic years. covering his / her living costs,full tuition required by the host university, round trip travelling expenses, as well as other miscellaneous fees.
The money will be given directly to M, who is then responsible for the payment of fees to the university.
Any assistance and advice you may render to M during his / her study tour will be highly appreciated.
Director
Bureau of International Cultural and Educational Relations
范例5 健康证明书
TO WHOM IT MAY CONCERN:
This is to certify that Mr. Lin Chonghan is physically and mentally healthy. This statement is based on his health history and a physical checkup. My observation of his health condition is that he is capable of doing extensive hard work, both manually and intellectually.
Sincerely yours,
Dept. Of Internal Medicine
Post Hospital
范例6 工作证明
INDUSTRIAL DEVELOPMENT BUREAU MINISTRY OF ECONOMIC AFFAIRS
July 11, 1986
To Whom It May Concern,
This is to certify that Mr. Shu duly passed the qualification examination as a Mechanical Engineer and has been granted a certificate, Taikong No. 6314 dated February 3, 1982 to this effect by the Ministry of Economic Affairs.
Particulars of the certificate follow:
Name: Shu
Native Place: Sichuan Province
Date of Birthn : Mechanical Engineering
Sincerely yours,
K. A. Wang
Director General
: November, 1955
Classificatio
范例7 参加学会、社团证明
TO WHOM IT MAY CONCERN:
This is to certify that Mr. Liang is a member of IEMC (Institute of Education for Mass Communication) since 1982. To the best of my knowledge, Mr. liang has been a senior lecturer teaching in the Dept. of Mass Communication, Beijing University since the beginning of 1984. He is also teaching some courses in Joint College.
I would like to mention that Mr. Liang is responsible. aggressive and gets along with his colleagues very well. Hence, he also demonstrates superior scholastic capacity and his potential for further academic growth.
If there is any information regarding this gentleman, please do no hesitate to let me know.
Best Regards.
范例8 职称证书
INSTRUCTOR'S LICENCE
Date: Feb., 1984
File No. Jiangzi 19045
This is to certify that Mr. Cheng Qin,
a native of Chengdu City, China,
born on March 26, 1966,
has been qualified for instructorship pursuant to
Teacher's Qualification Regulations of Colleges and Universities.
Minister of Education:
Submitting School: Sichuan College of Technology
范例9 大学获奖证明
Tsinghua University
NO. 742821 November 22, 1985
TO WHOM IT MAY CONCERN:
This is to certify that Miss Liu a senior student in our Department of International Trade College of Law, received four times the Book Coupon Awards, which only students among the top five percent are entitled to.
President