The functions and performances of current geological disaster monitoring systems have significantly improved in recent years. However, they still possess certain shortcomings, such as lack of deep monitoring functions and being affected by weather, atmosphere, and light. This study aims to combine electrical prospecting with geological disaster monitoring to develop an improved system. The proposed system has a high level of data gathering accuracy and involves deep monitoring. It is not easily affected by natural factors, such as the weather. We designed circuits for the high-precision data acquisition, high-voltage power transmission, and main control and developed an acquisition and monitoring software, which provides adequate technical support for geological disaster monitoring. The system was used to monitor the Lannitan landslide. Our results indicated that the proposed geological disaster monitoring system had stable functionality, high acquisition accuracy, simple operation of the human‒computer interface, and remote monitoring, meeting the requirements for geological disaster monitoring.