The present invention relates to a fishing rod back stopper, and is made of a single body, and the fishing rod coupling portion, the first catching portion, the backing seating portion, and the second catching portion are sequentially in the longitudinal direction from one side to the other side of the body. Is formed； The fishing rod engaging portion is in the form of a male screw that can be screwed to the rear end of the handle of the fishing rod； The rear rack seating portion is in the form of a cylinder that can be fixed by being inserted into the rear rack of a fishing base, and has a smaller outer diameter than the outer diameter of the fishing rod engaging portion, and a pattern for preventing radial direction departure is repeated on the outer circumferential surface along the circumferential direction； The first catching portion is a trumpet shape in which the outer diameter is gradually increased toward the one side in the longitudinal direction from the backrest seating portion, and the maximum outer diameter of the first catching portion is larger than the outer diameter of the fishing rod engaging portion； The second engaging portion is in the form of a trumpet whose outer diameter gradually increases toward the other side in the longitudinal direction from the rear mounting portion, and the maximum outer diameter of the second engaging portion is larger than the outer diameter of the fishing rod engaging portion； An inner hollow portion is formed along the longitudinal direction inside the body, and the inner hollow portion is continuously formed over a portion corresponding to the fishing rod engaging portion, the first catching portion, and the backrest seating portion； A stopper portion for closing the other side in the longitudinal direction of the inner hollow portion is formed inside the second catching portion, and an air hole for communicating the inner hollow portion with the outside of the other side in the longitudinal direction is formed i
