The invention discloses a marine pasture ecological environment monitoring system, comprising a data acquisition system, a data processing system and a control system. The data acquisition system andthe control system are arranged in different regions to achieve multi-site monitoring, environmental information such as the air temperature and humidity, the flow rate and flow direction of water, and the like in a monitoring area is acquired by using various sensors, real-time dynamic information of the monitoring area is monitored, and the monitoring information is released in combination witha wireless transmission technology. The scheme of the invention adopts an Internet of Things technology to achieve the dynamic monitoring of a marine ecological environment, has important significancefor preventing sudden marine pollution, realizing ecological environmental protection and performing marine production and aquaculture, adopts a sensor technology, a wireless sensor network technology, a wireless communication technology and an Internet technology in the Internet of Things technology, realizes the real-time performance and reliability of the monitoring of multi-factor data indicators in the marine environment, improves the intelligence degree and accuracy of the monitoring system, and has great practical help to prevent marine water pollution and perform marine aquaculture.