For improving the performance and application of microprocessor, it is necessary to integrate pipelined core, exception control unit, cache unit and memory management unit (MMU). The operating system is an effective way for microprocessor integration verification. However, it is not a feasible debugging methodology to detect the exact design bug while operating system booting crash. We found the main execution features of operating system are the data transfer and exception handling. We propose an integration verification methodology based on these execution features. The methodology is to verify concurrent cache transfer operation, consecutive cache transfer operation, external interrupt exception handling, page fault exception handling and multiple interrupt exception handling for microprocessor integration. We utilize ARM7-Like developed by our laboratory to do the experiment. It is effective to detect the design bugs in RTL simulation by the software-based verification methodology proposed by us. The modified ARM7-Like microprocessor is able to successfully boot Linux kernel and execute user applications in FPGA.