Vehicle-mounted millimeter wave radar test system

The invention discloses a vehicle-mounted millimeter wave radar test system, wherein a fixed bracket (1), a target simulator (3), a horn antenna (4) and a mechanical arm (5) are placed in a millimeterwave test darkroom (1), and a power module (6) and a measurement and control platform (7) are placed at the outside of the millimeter wave test darkroom (1). A radar to be tested (8) is fixed in themillimeter wave test darkroom (1) through the fixed bracket (2), the horn antenna (4) is installed on the target simulator (3), the radar to be tested (8) is opposite to the horn antenna (4), the hornantenna (4) can be driven by the target simulator (3) to move in a two-dimensional plane for simulating targets located at different angles and different heights so as to complete a radar performancetest. The mechanical arm (5) is installed on one side of the fixed bracket and is used for automatically clamping the radar to be tested. The system can automatically complete the evaluation of multiple sets of vehicle-mounted