The invention discloses an aquatic culture feeding system with a hanging operation mechanism. The aquatic culture feeding system comprises a culture pond, a breeding cabinet, a crane and a feeding table; a wheel tread of a cart running device in the crane at one side presses a workshop rail of a workshop ground where the culture pond is located for running; a wheel tread of the cart running devicein the crane at the other side presses a workshop rail on a rail bearing beam; and the rail bearing beam is connected to workshop stand column brackets. The breeding cabinet is placed in the culturepond, breeding boxes are arranged in the breeding cabinet, each breeding box is provided with a feeding port, and the periphery of each feeding port is provided with one-way thorns. The feeding tableis connected below a lifting mechanism, and wheels of the hanging operation mechanism above the lifting mechanism are hung on hanging bracket rails and can run, the two hanging bracket rails are parallelly connected under a hanging bracket, and the hanging bracket is connected to the crane. The crane is used for lifting the breeding cabinet to above the tank surface, and operators on the feeding table can grab feed by hands, and then feed the feed to the breeding boxes in the breeding cabinet.