求职信和一般书信的格式大致相同，由以下六部分组成：
1.信头 heading
2.信内地址 inside address
3.称呼 salutation
4.正文 body of latter
5.结束语 complimentary close
6.签名 signature
   The following application letter format lists the information you need to include in the job application letter you send with your resume. Use this application letter format as a guideline to create customized application letters to send to employers.
Heading: information of the potential employee
  1. Date
  2.Address
  3.City, State, Zip Code
  4.Phone Number
  5.Email Address
Salutation
  1.Dear Mr./Ms. Last Name (leave out if you don't have a contact)
Body of Application Letter
  1.The body of your application letter lets the employer know what position you are applying for, why the employer should select you for an interview, and how you will follow-up.
  2.First Paragraph
  3.The first paragraph of your letter should include information on why you are writing. Mention the job you are applying for and where you found the job listing. Include the name of a mutual contact, if you have one.   
  4.Middle Paragraph(s)
  5.The next section of your application letter should describe what you have to offer the employer. Mention specifically how your qualifications match the job you are applying for. Remember, you are interpreting your resume, not repeating it.
  1.Complimentary Close
  2.Conclude your application letter by thanking the employer for considering you for the position. Include information on how you will follow-up.
  3.Sincerely,
  4.Signature