In emergency situations, you can contact the local police, ambulance service, fire department and other emergency services by calling 110.
If you lose your passport, make a ‘lost report’ at the nearest police station (call free number 114 for locations). Then contact your consulate to have your passport replaced.
Here is all the information of consulates in Guangzhou
Lost or stolen wallet
If your wallet or valuables are lost or stolen, please notify your hotel immediately and report to police. Keep a separate record of your credit card number(s) and report the loss to your card issuer(s) as quickly as possible. Most issuers have toll-free numbers and 24-hour service to deal with such emergencies.
Emergency numbers are: Police: 110; Fire: 119; Medical: 120; Traffic accident: 122.