This paper introduces an automatic scaling expansion method based on microservices.This paper realizes a set of automatic process monitoring and automatic expansion,which can greatly reduce the maintenance of personnel and improve the development efficiency.Each target microservice in the service chain can implement an automatic capacity ex-pansion processing mechanism.When a high amount of concurrent data is accessed,the service side can configure nodes between multiple services based on the monitoring of data traffic points,and data can be deployed and automatically ex-panded.This mechanism can greatly reduce the transmission delay between data flows and physical devices of target mi-croservices.Improve the platform load capacity,high data traffic points to access the system platform,the server will not be down,the entire platform will not be broken,to ensure that data can be entered into the database in real time.