System for reducing resuspension of suspended matters at bottom of channel

The invention relates to a system for reducing resuspension of suspended matter at the bottom of a navigation channel, which comprises the navigation channel for a to-be-passed ship to sail; the control net mechanism comprises multiple layers of at least two layers of net bodies which are obliquely arranged downwards in the water flow direction of the channel, and first aquatic plants and brushes which are arranged between the upper side layer and the lower side layer of the adjacent upper layer of net bodies respectively, the multiple layers of at least two layers of net bodies are close to the bottom of the channel, and the mesh size of the upper layer of net body is larger than that of the lower layer of net body; the net body is connected with a weight at the center of the channel, the net body is connected with floating balls at the two sides of the channel, and the density of the brush is greater than that of water; the collecting module is arranged at the inclined output end of the net body and used fo