Catheter fixing device

The utility model relates to the technical field of catheter fixing, in particular to a catheter fixing device which comprises a base, a connecting rod is fixedly connected to the position, close to the edge, of the upper surface of the base, a cover body is rotationally connected to the outer surface of the connecting rod, and a connecting frame is fixedly connected to the upper surface of the cover body. The inner surface of the connecting frame is rotatably connected with an adjusting frame, the inner top surface of the adjusting frame is fixedly connected with a second air bag, the instant noodles of the base are fixedly connected with a first air bag, and the lower surface of the cover body is movably connected with a downward pressing column in an embedded mode. The adjusting frame can be fixed under pushing of the threads, later liquid medicine injection is facilitated, the cover body is turned over and clamped to be fixedly combined with the catheter at the tail end, the steps needed for catheter fixi