The utility model discloses a quick qualitative benthos collection net, including handle and write by hand net, the write by hand net includes the screen frame of being connected with the handle and the string bag of establishing on the screen frame and can strutting backward, and the write by hand net is equipped with the lid net that can open or close write by hand net net gape in the front side of screen frame, and the bottom of screen frame is equipped with a plurality of spike -tooths that stretch out downwards. When gathering benthos, the operation of will launching of collection personnel, handheld handle inserts the aquatic to the spike -tooth of screen frame lower extreme, rocks to move ahead in the bed mud, and the benthos in the bed mud will fall into the lid net along with the stirring of spike -tooth, and the lid net can filter some great debris, rubble etc. And along with moving ahead of write by hand net, benthos will finally fall into the string bag of write by hand net, washs the back in aqueous, takes the bank with the net, and benthos can in netting with the tweezers picking. The utility model discloses can utilize the bed mud in the clean network pocket of waters water own, can fully catch benthos, the waste of manpower and materials when the reduction is washed to the bed mud greatly.