PURPOSE: To provide a method for economically producing a seamless belt not generating a deviation phenomenon on the driving of the belt and used for carriage.

CONSTITUTION: When a tubular woven fabric is produced with a shuttle having a weft tube therein, the twisting direction of a weft wound on the weft tube is directed in the direction reverse to the twisting direction of the weft generated when the weft is unwound from the weft tube, and the twisting number of the weft is simultaneously controlled within a range of ±10% of a value obtained by dividing the unit length of the weft by the average winding circumferential length of the weft. The tubular woven fabric is used for producing a seamless belt for carriage.