In order to meet the needs for marine Informatization construction in marine environment monitoring and marine information acquisition in the era of big data, the problems in the process of intelligent monitoring and utilization of the marine environment are analyzed and summarized. On this basis, the architecture and key technologies of stereoscopic perception system for marine environment monitoring are discussed in detail. The research could realize the stereoscopic, real-time and in-situ online monitoring of various marine elements, and provide data support for the realization of intelligent ocean development and utilization, which is of important strategic and economic significance.