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In response to the need for the construction of intelligent fast space test and launch control system(TLCS) for aerospace launch sites, this paper proposes a solution of using the 5G mobile communication technology to build a wireless-TLCS network, which mainly solves the wireless communication coverage between the launch vehicle and ground, and fusion to the public 5G mobile communication network as well. The wireless-TLCS network plays a role as industrial field wireless bus of 5G-SA independent networking mode, which can provide more than 100Mbps high-speed transmission of test data and high-reliability(<10^-6), low-latency(<3ms) transmission of launch control instructions by using the network slice; meanwhile, it can support the potential application of portable TLCS and remote TLCS. The network adopts the architecture as access bearer core, which the access network is used for wireless signal coverage between the front and back ends, bearer network and core network realizes data transmission and network management. This paper also proposes the application of wireless test and launch control system and analyses its performance.