Mr.Vikas Kumar Jain, you can apply for China Business Visa (F) if your training program is less than 6 months, your wife can apply for Tourist Visa (L visa), the basic requirements are:
1. Application Form:
2. Applicant's passport
3. One recent passport size photograph.
4. One Passport photocopy.

additional requirements for Business Visa are:
A: A letter of invitation from China
B: Covering letter from applicant's company or employer addressed to the visa office.

addtional requirements for tourist visa are:
A: Covering letter from applicant's company or employer addressed to the visa office.
B: Photocopy of a confirmed return air ticket
C: proof of travel expenses, such as bank statement