Kachāya and Uttarasamghāti,dress of the priesthood and important Buddhist conception of ascetic morality and achievements and monastic discipline.Following development of Buddhism,especially entering Sectarian Buddhism period,differential style and color of monastic dressing were settled up for distinction them from one or another school.The school of all beings had refined upon their dressing and had theirs own distinctive style.This distinctive monastic dressing style had reflected in Kucha mural execution. Based on a textual research and iconographic study with the Kucha murals, this article had exploring and testified the monastic dressing in Kucha Grottoes and the relative questions.