With the rapid development of Internet technology and the comprehensive arrival of the era of big data, the development of enterprise business scale and the rise of logic complexity make coupled distributed systems play an increasingly important role in enterprise-level applications. The multi-task dynamic scheduling scheme based on the proposed method has problems such as poor manageability, poor task scheduling ability and poor usability. Therefore, this paper studies and constructs the coupled distributed system considering the multi-task dynamic scheduling. This paper firstly introduces the relevant theories. In the system theory part, it mainly introduces the scheduling module, followed by the system design. In the system design part, the task scheduling is mainly designed. Finally, the system implementation is carried out. Scheduling accuracy is analyzed.