To provide a method for producing sash in which a double-woven sash or one-piece sash can simply be prepared in a low cost.

Sash cloth in which a plurality of bags 1a and 1b, etc., having prescribed lengths are linked through an overlapped parts 4, etc., is used and in these bags 1a and 1b, etc. of the sash cloth, surface cloth 2 and rear cloth 3 form a pair and patterns such as design and color are formed in the interior of at least surface cloth 2 and these overlapped parts 4 of the sash cloth are cut and reversed to prepare the sash cloth.