The traditional infrared dynamic scene simulator based on PC has bad real-time performance.And it is difficult to take out to experiment for its huge bulk.The simulator designed takes the advantage of embedded technology to get good real-time performance and little bulk.It uses the ADSP-TS201 as the embedded processor to run the infrared dynamic scene simulation algorithm.And the FPGA is used to solve the input and output of data,including sending the infrared image to the signal processing device and receiving the feedback signal from it.The CY7C68013A USB controller is used to extend a USB interface for the Host PC to monitor the simulator.The design and implementation of the simulator is discussed in detail.And an experiment result is provided.