The invention discloses a method, device and system for software development based on micro services and belongs to the technical field of software development. The method comprises the steps that to-be-developed software is decomposed into multiple micro services, and a micro service framework is constructed; each micro service is taken as an independent unit for development, debugging, deployment and running and is developed independently; and by the micro service framework, registration, finding, calling and monitoring between the multiple micro services are achieved, and the to-be-developed software can be developed. The device comprises a micro service decomposition unit and a micro service framework construction unit. The system comprises a micro service runtime container and a local service registration center. The method, device and system can reduce the development difficulty of a large and complicated service system, and can overcome the problems that deployment cost of a traditional JAR packet or OSGI mode is low, the system expansibility is poor and resources are wasted.