The invention belongs to the field of textile technology, in particular to a machining process of a peach skin cotton fabric. The machining process of the peach skin cotton fabric provided by the invention comprises the processes of turning and sewing, singeing, cooling and stacking, bleaching again by a jig dyeing machine, drying in a loose mode, sizing, mercerizing by a straight roller, brushing by carbon elements, dyeing by air flow, treating by cellulase in an air flow machine, drying in a loose mode, padding softeners in a loose mode, beating by air flow in a softening machine, tentering, pre-shrinking, and sorting and finishing. In the invention, the pretreatment processes of cooling and stacking and the process of dyeing by air flow are used for achieving the optimal effect of uniform and transparent dyeing; the automatic on-line detection technology is used for tracking the quality and processes to enable the production processes to be controlled at the critical optimal point, and all drying processes are carried out in a loose mode to keep the optimal hand feeling effect; and the processes of brushing by carbon elements, dyeing by air flow, treating by cellulase, beating by air and the like are used for ensuring that the fabric has delicate and plump peach skin hand feeling, plastic elasticity and delicate and clear cloth cover.