The invention discloses a cable take-up device for construction. The cable take-up device comprises a base, wherein vertical plates are fixedly connected to the two sides of the bottom end of the base, a lifting plate is arranged between the two vertical plates, a roller support is fixedly connected to the lower end of the lifting plate, a first mounting frame is fixedly connected to the rear sideof the upper end of the base, a first rotating shaft is rotationally connected to the first mounting frame through a first bearing, four casing pipes are uniformly and fixedly connected to the circumferential direction of the first rotating shaft, telescopic rods sleeve the casing pipes, one ends, far away from the casing pipes, of the telescopic rods are fixedly connected with arc-shaped plates,the front side of the upper end of the base is fixedly connected with a second mounting frame, a second rotating shaft is rotationally connected to the second mounting frame through a second bearing,and a roller is fixedly connected to the second rotating shaft. According to the cable take-up device, the structure is simple, and the design is reasonable; the sizes of circular rings formed by thefour arc-shaped plates can be controlled by adjusting the telescopic rods, so that more cables can be contained; and in addition, a buffer is provided through the roller, so that the cable can be prevented from being stretched and broken.