The invention discloses a manufacturing technology of clothes body patch pocket which is made of surface pocket cloth and inner pocket cloth through stitching; the patch pocket is stitched to a clothes body. The manufacturing technology comprises following steps: step a, a lining is bond to the surface pocket cloth; step b, edge folding is carried out on the surface pocket cloth; step c, the periphery of the surface pocket cloth is wrapped and ironed; step d, upper edges of the inner pocket cloth and the surface pocket cloth are stitched and an unstitched opening is reserved; step e, the surface pocket cloth and the inner pocket cloth are stitched to form a patch pocket; step f, the inner of the patch pocket is integrally turned outwards through the opening; step g, the opening is stitched; step h, the inner pocket cloth and the cloth body are stitched. According to the technical scheme of the invention, the patch pocket is integrally turned outwards through the reserved opening after stitching so that there is no open threads exposed outside the patch pocket; the patch pocket is stitched to the clothes body through the inner pocket cloth so that a clothes body patch pocket structure without open treads inside or outside the patch pocket is obtained; the patch pocket is beautiful and elegant.