120 is the number for an ambulance
Beijing's guide writes it as: there are "120" emergency medical centers across Chinese mainland. The quotation marks in the source mark 120 as the name of the emergency medical service, not a national count of centres, and this page reads it that way. In Beijing you may dial (+8610) 120 to request pre-hospital emergency medical services.
Clear Consultation Process (Medical Guide for Foreigners in Beijing) (Beijing Municipal People's Government, read 2026-07-25)