Abstract: The design size, complexity and integration of SOC design have increased constantly and the complexity and difficulty of SOC design have been improved.The hardware and software collaborative simulation technology has become an important method of SOC verification. In allusion to the verification requirement of SOC design based on SPARC V8 embedded processor, MODELSIM FLI interface and Windows virtual device driver are used to build a simulation backplane, and a SOC hardware and software collaborative simulation environment are designed, which are based on the RTL source code of LEON2 and SPE-C integration debugging environment. The function and performance of the hardware and software collaborative simulation environment is verified through a variety of test procedures under different configurations of LEON2 processor.