The utility model relates to a collision resisting mechanism for a stop rod of a traffic barricade. The collision resisting mechanism comprises a big shaft welding part and the stop rod, wherein the big shaft welding part and the stop rod are connected together by a collision resisting connector which is composed of a seat block fixed on the stop rod and a clamp body buckled on the seat block. The exterior end of the clamp body is assembled together with the corresponding part of the seat block in rotation, and the back part of the clamp body is fixed together with the big shaft welding part. At least one mounting hole is arranged in the seat block in vertical direction or horizontal direction toward the extending direction of the stop rod. The clamp body is provided with a clamp opening corresponding to the opening part of the mounting hole. An elastic push ball body is arranged in the mounting hole, and the ball head of the elastic push ball body forms elastic position fit with the clamp opening. The fitted operation of the elastic ball head of the collision resisting mechanism of the utility model is safe, and the utility model fundamentally avoids the defects that the stop rod is difficult to disengage, and the stop rod can not be tightly clamped after the stop rod is deformed. The process of components in every group is easy, and the dimension can be easily ensured. Moreover, the assemblage is convenient, and the cost is low. In addition, the control of disengagement torque is also very simple and convenient.