The invention relates to a family doctor robot and an operation method. The family doctor robot comprises a mechanical body and a main control system; the mechanical body includes a body structure, a head structure, an arm structure and a machine body power structure; the main control system adopts a master-slave machine system; a host machine is a Linux WRTnode2R development plate based on a wireless router scheme; a slave machine is a 8-bit single-chip based on an Atmega328 chip; the main control system is mounted on the machine body of the robot body structure; as related information of local hospitals, departments and doctors is introduced in an internet of things system, users use a tablet personal computer of the family doctor robot for accessing URL links to obtain medical information through web browsers, and send own symptoms to doctors in a short message manner; the doctors reply at the first time after seeing short messages; the users can build video call connection with the doctors; the family doctor robot can perform physical examination for the users; and the doctors give primary diagnosis according to the physical examination data, and give reasonable suggestions.