The invention provides a container-based service multi-version coexistence implementation method. The method comprises the following steps: configuring a plurality of service nodes in a server, configuring a plurality of containers in each service node and loading different service sets in each container, thereby not only realizing the multi-version coexistence of the service, but also clearly distinguishing different service types and different versions of the same service type in a service coexistence environment; services of old and new versions are distinguished by the containers, after new services are added or old services are stopped, a client can automatically screen a to-be-called service version according to its own version and obtains a service call result from the corresponding container, thereby reducing the manual controlled call when the client is inconsistent with the called service version; and due to the coexistence of multiple versions of services, the new services do not need to be restarted and loaded in an upgrading process of a service application, thereby simplifying the cumbersome process of service upgrade and realizing hot deployment of services in a distributed environment.