The invention provides a radar multi-angle target simulation system and a method. The system comprises a master controller and a box body; an inner wall of the box body is fixedly connected with a plurality of high-speed rotary table holder fixed ends which are horizontally arranged from top to bottom in sequence, a high-speed rotary table is arranged on a free end of each high-speed rotary tableholder, and a radar echo simulator is arranged on each high-speed rotary table; the radar echo simulators are connected with waveguide tubes, and the waveguide tubes are connected with horn antennas.Through the cooperative use of a master controller, the high-speed rotary tables, the radar echo simulators, the high-speed rotary table holders and a radar fixing frame, the radar multi-angle targetsimulation system provided by the invention have the characteristics of large number of simulation targets, rich simulation target states and small occupied space of simulation equipment.