Fisher

The utility model discloses a fisher, and belongs to the field of oil exploitation. The fisher comprises a joint, an outer cylinder and a fishing head, the joint is connected with the outer cylinder,the fishing head is located in the outer cylinder, and the upper end of the fishing head is connected with the joint; a first boss is arranged at the bottom end of the inner wall of the outer cylinderand used for preventing the fishing head from sliding out of the outer cylinder. Wherein a groove penetrating through the wall of the outer barrel is formed in one side of the bottom end of the outerbarrel, and at least two fishing pieces which are mutually spaced are arranged below the fishing head. The fishing rod bent on the blanking plug is guided into the groove through the groove in the outer cylinder; when the bottom end of the outer cylinder abuts against the boss at the bottom end of the upper gland of the blanking plug, the groove clamps the fishing rod, the fishing head clamps thegland of the blanking plug,