The invention discloses a fish guard which is laborsaving and convenient to carry. The fish guard comprises a fish guard net, 20 fish guard plates, a top cover and a base; the fish guard plates are fixedly connected to the outer side of the fish guard net, four clamping blocks are arranged on the upper side and the left side of each fish guard plate, clamping grooves matched with the clamping blocks are arranged on lower sides and left sides of the fish guard plates, two first sliding chutes and two second sliding chutes are arranged in the fish guide plates, each of the first sliding chutes is slidably connected with a first connecting rod therein, each of the second sliding chutes is slidably connected with a second connecting rod therein, a third sliding chute is arranged in the inner side of each second connecting rod, a first limit block is slidably connected in the third sliding chute, the clamping blocks are arranged on the lower surface of the top cover, the base is fixedly connected to the position of the center of the bottom surface of the fish guard net, each of the opening and the bottom surface of the fish guard net is provided with a fish guard trap, and fish guide rings corresponding to the fish guard traps are arranged in the corresponding fish guard traps. By the arrangement, less effort is taken in drawing in the net, carrying is facilitated for people, and surrounding pollution can be efficiently avoided.