Requirements for a tourist visa to China are as follows:
1. A completed visa application form, which must be signed by the applicant or parent and guardian if the applicant is under 16 years old.
2. Original passport, which must be valid for more than 6 months and has more than two blank visa page left, and a passport copy (A-4 size).
3. A copy (A-4 size) of the U.A.E. residence visa, which should be valid for more than 6 months, if non-U.A.E. national.
4. A photograph as in the passport.
5. A signed and stamped employment/no-objection letter from the company which clarifies the applicant's full name, nationality, passport number, position,salary, the purpose of the visit etc. Or a copy of the trade license, if self-employed.
6. A copy of the round air ticket booked, hotel reservation, an invitation letter and personal bank statement, if required by the consular officers.

Prepare all the above documents and submit them to Chinese embassy or consulate where your location belongs to.
The general duration of a tourist visa is 30 days or less. Visa fee is about AED 150 for a single entry.