Abstract: To address the technical requirements for remote management and control of airborne test systems during aircraft flight testing, this paper proposes a remote management and control system based on 5G wireless link. The system comprises three components: The airborne control system, the 5G communication link, and the remote management and control center. The airborne control system adopts a modular design centered on a central control unit. It integrates 5G private network terminals and antennas to downlink airborne equipment status, execute uplink control commands, and perform data processing. The 5G wireless link utilizes dual-band transmission (mmWave and Sub-6 GHz), providing transmission capabilities of up to 1.2 Gbps downlink and 600 Mbps uplink to ensure high-speed and stable data transfer. The remote management and control center is developed based on a Browser/Server (B/S) architecture, enabling real-time monitoring and control adjustments of the airborne test system. Experimental results demonstrate that the system achieves a command response time of ≤100 ms, data feedback latency of ≤50 ms, and a communication recovery time of ≤0.3 s, effectively meeting the strict real-time and stability requirements of flight test missions.