The invention discloses a radar target track simulator based on a microprocessor, and a verification testing system. The simulator comprises a microprocessor module, a communication module, a power module, and a clock module. The microprocessor module is used for calculating a target track in real time, and judging whether a target is intersected with a wave beam or not according to the position of a current wave beam and the target track, and outputting point trace information according to a set missing alarm rate and a false alarm rate after successful intersection. The power module is used for supplying power to the simulator. The communication module is used for the real-time communication between the processor module and an external upper computer. The clock module is used for work clock input of the microprocessor module and the communication module. The simulator can simulate a scanning process of a radar antenna, the intersection of the target track with the antenna wave beam and the generation of a dot trace at the certain false alarm rate and missing alarm rate, and achieves the real-time communication with the upper computer.