The invention discloses a distributed service sate detection device and method. The detection device comprises a main service part and an end service part, the main service part is mainly used for service state information management and service tree model management of a present node and all sub nodes thereof, and the end service part is mainly used for collecting basic server information and obtaining customized interface information of application services. The detection device and method use multi-level monitoring of the tree structure, the service monitoring process is dispersed to different distributed service nodes, the distributed services in the different network environments can be monitored in a unified way, and distributed monitoring and storing are used to improve the service monitoring efficiency and effectively reduce the load of monitoring servers.