Gray cloth storage device and using method thereof

The invention provides a gray cloth storage device and a using method thereof.The gray cloth storage device comprises a gray cloth goods shelf, a conveying branch line, transition temporary storage lines, an input main line, a gray cloth transfer machine and a first output line, the conveying branch line comprises a branch line track and a gray cloth stacking machine, the branch line track is arranged on one side of the gray cloth goods shelf in parallel and extends in the length direction of the gray cloth goods shelf; the gray cloth stacking machine is arranged on the branch line track in a sliding mode, the transition temporary storage lines are arranged at the two ends of the branch line track, and when a turnover box with gray cloth on the gray cloth goods shelf needs to be taken out, the turnover box is conveyed to the transition temporary storage line close to the first output line through the gray cloth stacking machine, and the input main line is arranged at one end of the gray cloth goods shelf; and