L Visa (Tourist Visa) and documents required:
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.

Hi Lilian

So kind of you for your quick and informative reply.
But i sent my P.R.O and My daughter to Chinese consulate Dubai twice with the passport plus application for visa but both time they were turn back asking to get the invitation letter from China Govt even for L.Visa. Now i have no idea how to obtain this letter, as far as business visa i requeted my Supplier which got stamped from China Chamber. Can you help me ?

Rgds
M.Ali from Dubai

For China L visa, no invitation letter is needed, you should call the embassy to confirm this.
Tel: 971-4-3944733