Abstract: Experimental research on rock crack propagation is currently an important means of exploring the process of rock fracture, and shear crack propagation is one of the basic propagation modes in the rock fracture process, which is of great significance for exploring the safety and stability of engineering rock masses and oil and gas extraction. In response to the current situation that traditional monitoring methods for shear crack propagation experiments are too single and capture limited information, which cannot effectively meet the research of rock shear fracture laws. This paper upgraded and renovated the equipment, and established a real-time monitoring test platform for rock shear crack propagation. The development of test platform not only achieves full field monitoring of the internal and external evolution process of rock shear fracture, but also improves the utilization efficiency of individual samples. Moreover, it has reduced the difficulty of experimental operations and effectively shortened the preparation time for experiments. This achievement has been widely applied in teaching and scientific research practice, achieving significant results.