1. Original passport with at least two blank visa pages;
2. One completed Visa Application Form for China;
3. Round-trip airline tickets and hotel reservation，for family visit should provide certificate of relationship.
4. You are required to provide documents that entitle you to reside for an extended period of time in the SPR,WP,EP,STP,DP. Temporary visitors to Singapore should apply for a Chinese visa in their own country.

HI,..do you mean we need to stay longer in singapore then we can apply chinese visa for foreign passport??
I called up my x colleague, she told me we (turkish n indonesian passport) can apply in singapore and fly from singapore to china
thank u

Generally, you need to show documents that entitle you to reside there for next few months, but as your friend said, you may have a try to submit your applications to the Center.