Fishery photovoltaic complementary breeding tail water ecological filter dam system

The invention relates to the technical field of tail water treatment, in particular to a fishery photovoltaic complementary breeding tail water ecological filtering dam system which comprises a water collecting part, a primary sinking part, a water purifying part and a water filtering part which are arranged around the periphery of a breeding pond, photovoltaic power generation equipment is erected on the breeding pond, and the water collecting part and the primary sinking part are jointly arranged outside the breeding pond in a surrounding mode; the water purifying part and the water filtering part are sequentially arranged on a water collecting part on one side of the culture pond, a water pump is arranged and electrically connected with the photovoltaic power generation device, and the two ends of the water pump are communicated with the culture pond and the terminal of the water filtering part respectively. The invention aims to solve the problems of poor aquaculture tail water treatment effect, low effic