At present

communication networks have the characteristics of packetization

high speed

and low delay. In particular

business systems such as 5G put forward higher requirements for synchronization performance and application security. At the same time

the deterministic characteristics of future networks also require better support from synchronization technology. The synchronization technology based on the telecommunications network needs to be developed adaptively

and related content has become the focus of attention in the current industry.This article analyzes the current status of time synchronization technology and frequency synchronization technology

discusses the characteristics of the business system’s requirements for synchronization networks

and combines the characteristics and trends of synchronization requirements to summarize the development of synchronization technology.