Aiming at the difficulty of comprehensive testing of various types of signals for some equipment in deep-sea abnormal environment test, a comprehensive testing system for deep-sea abnormal environment is designed based on multi-parameter cluster transmission technology and embedded storage technology. The hardware design based on FPGA and the software design based on LABVIEW are introduced in detail. The underwater test results of the equipment show that the system can accurately collect various environmental parameters in the body of the equipment structure, and effectively detect the leakage of the equipment, which meets the design requirements and lays a technical foundation for the dynamic test and state assessment of the internal environmental parameters of the underwater equipment.