Abstract: As the main evolution direction of the next stage of industrial Ethernet, time- sensitive network technology has reached a consensus in the industry. At present, the basic protocol of time-sensitive network technology has become mature and perfect. Currently, the industrial field is the main scene of time-sensitive network technology focus on. Industrial alliances actively sort out relevant needs, incubate relevant schemes and promote their implementation in vertical industries.As a basic feature of time-sensitive network deployment, the definition of its requirements and schemes will better support the overall application of time- sensitive network schemes. In this paper, the characteristics of time synchronization in time- sensitive network technology are summarized and introduced according to the business requirements of industrial scenes.

Key words: time-sensitive network, time synchronization, industrial Etherne