The utility model relates to the field of protection devices, in particular to a cable bending tightness limiting protection device which comprises a first bending track, a limiting
assembly and a pressing
assembly. The two ends of the first bending track are respectively provided with a limiting
assembly used for adjusting, limiting and fixing according to the size condition of a cable, and the inner side of the first bending track is provided with a plurality of pressing assemblies used for pressing and fixing the position of the cable. According to the utility model, the cable is bent and laid along the first bending track, then the second bending track on the first bending track is taken up to be assembled with the cable, then the limiting assembly is adjusted to be limited and fixed according to the size of the cable, and then the pressing assembly moves downwards to press, fix and protect the cable. By means of the adjustable limiting structure, the function of pressing cables with different diameters can be achieved, the cables with different specifications can be conveniently restrained, the cables are arranged in order, the cables can be prevented from being damaged due to excessive bending, and the performance and the service life of the cables are maintained.