In order to meet the design requirements of high angular resolution and miniaturization design of laser alarm system. Based on the embedded system development process, the architecture of MicroBlaze softcore processor was studied, and a minimum laser signal processing system based on MicroBlaze softcore was designed and implemented. The design uses MicroBlaze softcore to build a microprocessor platform, and other peripheral IP cores to complete the design of programmable system-on-chip (SOPC). The design of monolithic integrted processing enables the signal flow to occur inside a chip, which greatly improves the data operation speed and the real-time data interaction. The experimental results show that the system can well realize the acquisition and processing of laser signals, and the communication results with the serial port of external devices meet expectations.