The invention provides a system for collecting and processing the ecological environment information of ocean near coastline, and belongs to the technical field of environment monitoring. In the system, an anemometer, a wind vane, a wind direction sensor, a wind speed sensor, an air temperature sensor, an air humidity sensor, and an air pressure sensor form a meteorological parameter collecting mechanism. A seawater temperature sensor, a salinity sensor, a pH sensor, a turbidity sensor, and a dissolved oxygen content sensor form a seawater parameter collecting mechanism. A water wheel blade, amain generator, a horizontally arranged coil group, a lateral array magnet, an annular array magnet, a longitudinally arranged coil group, and a battery form a system power supply mechanism. An information processing circuit board forms an information processing mechanism. The system is simple in structure, low in manufacturing cost, high in automation degree, convenient to use, stable in power supply, easy in data collecting, high in system stability, which is helpful for marine ecological environment monitoring, marine animal and plant protection, marine development and utilization.