The utility model provides a court lineation device which comprises at least two connected buried fixing parts, each buried fixing part comprises a telescopic rebounding device and a wire winding box, the wire winding box is arranged in a pit pre-dug in the ground through the telescopic rebounding device, and the telescopic rebounding device can be switched between a stretching state and a retracting state so that the wire winding box can be hidden in the pit or exposed out of the ground; wherein a side line belt with a male buckle is wound in one winding box, a side line belt with a female buckle is wound in the other winding box, the male buckle is connected with the female buckle in a matched mode, and the side line belts of the two buried fixing pieces are connected into a whole. When the line drawing device is used, the two adjacent line winding boxes are pulled out of the pit and connected with the side line belts of each other, line drawing can be rapidly, conveniently and nondestructively achieved, various sports activities can be developed, meanwhile, the line drawing mode is changed, rapid switching among various courts can be achieved, and the diversified requirements of different time periods and different types of sports activities for the courts are met.