Can Chinese people renew their passports at the Chinese Embassy in Singapore?

Yes, she can renew her Chinese passport at the Chinese embassy in Singapore, she has to go to the embassy in person to submit the following required documents:
1. truthly and completely fill in Chinese Passport/Travel Document/Entry Permit of P.R.China Application Form
2. three passport photos
3. the original Chinese passport and its photocopy
4. Singapore student pass and its photocopy
5. if she is under the age of 21, the following documents are also required:
1)the notarial deed of birth certificate or the original and photocopy of birth certificate in Singapore
2) original and photocopy of passports, Singaproe residence permit of both parents, if parents don't hold Singapore long-term residence document, the photocopy of household registration sheet of parents are required.

It costs 95 Singapore dollars, it takes 10 working days.