According to the target task multi-level monitoring device and method based on the private cloud provided by the embodiment of the invention, the target task attribute information module is set to standardize the target task attribute information, so that different levels and different enterprises obtain the unified target task attribute information, and the consistency of the data granularity isensured; The target task business process is standardized through the target task publishing module, so that different levels and different enterprises can receive the target task information in time,and the data exchange cost between the different levels and the different enterprises is reduced; Through a target task monitoring module, lower-level enterprise summarizes the conditions, and upper-level enterprise collects of target task completion conditions, enterprises of different levels can monitor the latest dynamic state of a target task in time, so that the enterprises of different levels can discover problems in the execution process of the target task in time, and the risk of planning of the target task is pre-judged; Through the data interface library, deep integration of the multi-level monitoring device for the target task in the special cloud and the group cloud platform is realized, data resources are saved, and the data use efficiency is improved.