The invention provides a rotary fixing typle installation tool for a preformed armor rod which comprises a rotation upper half body, a rotation lower half body, and a winding adjustment device. The inner side faces of the rotation upper half body and the rotation lower half body are provided with same arc grooves. The inner side face of the rotation lower half body is provided with two opposite sliding buckle bodies which are symmetrically distributed at two sides of the arc groove arranged at the rotation lower half body. Each of the sliding buckle bodies comprises at least one sliding buckle groove. The rotation upper half body is provided with two sliding buckle plates which are matched with the sliding buckle grooves. The outer side faces of the rotation upper half body and the rotation lower half body are provided with T-shaped slide rails. The winding adjustment device comprises a slope and a clamp device. The rotary fixing typle installation tool for a preformed armor rod has the advantages of a simple structure and convenience in operation, in the process of application, both the rotation upper half body and the rotation lower half body are bucked at a cable which needs to be wound by preformed armor rods, the movable ends of the preformed armor rods are clamped in the clamp device, through constantly rotating and moving the tool, the uniform and order winding of the preformed armor rods on the cable can be realized.