You can apply from the Chinese Embassy or consulate according to where you reside. Following are the requirements:
1. Application form: You should fill in one visa application form appropriately and authentically.

2. Applicant's passport valid for at least six months with at least 2 blank visa pages.

3. One recent passport size photograph.

4. Your Japan residence permit.

5. Your Japan visa is helpful when you apply for a china visa.
other requirements may be furthermore in need.