The present invention relates to a pasty pesticide applicator, comprising a cavity for containing pasty pesticide, an ointment base mounted inside the cavity and bonded together with pasty pesticide, and a screw for driving the ointment base to move along the inner wall of the cavity. One end of the screw is inserted into the inside of the cavity and the other end is outside the cavity and connected to a rotary handle. During application of pesticide, the operator removes the cap of the applicator from the cavity, rotates the rotary handle or the cavity to push the pasty pesticide in the applicator out of the cavity, holds the cavity in hand and directly smears the pasty pesticide on the target applying positions. The pesticide applying device provided by the present invention is characterized by safe use, simple structure, easy storage and portability.
