Water conservancy river channel trash holding device

The utility model relates to the technical field of water conservancy river channel trash holding, and discloses a water conservancy river channel trash holding device which comprises a fixing frame. Sliding grooves are formed in the two sides of the fixing frame, sliding blocks are arranged in the sliding grooves in a sliding mode, the sliding blocks are fixedly connected with an intercepting net, installing bases are installed at the two ends of the intercepting net and hinged to a folding baffle, and an adjusting component is arranged on the intercepting net and used for adjusting the angle of the folding baffle, so that the trash intercepting width of the device is changed. A floating part is arranged on the intercepting net and is used for adjusting the intercepting position of the intercepting net; the device is fixed in a river channel through the fixing insertion rod, the intercepting height of the intercepting net can be adjusted according to the water level height of the river channel in cooperation