The invention relates to the field of cooking tools, in particular to a grill with an ash cleaning function. The grill with the ash cleaning function comprises a charcoal ash groove, supports and an oven, wherein an opening groove is formed in a side surface, which is close to the groove bottom, of the charcoal ash groove; an ash plate is inserted in the charcoal ash groove through the opening groove; bolts are symmetrically arranged at the bottoms of two ends of the two opposite side surfaces of the charcoal ash groove; each bolt is in threaded connection with a right-angled connector; each right-angled connector is in threaded connection with the corresponding support; the two supports which are on the same plane are connected with a baffle in a sleeving manner; the oven comprises a box,a grill body and a charcoal plate; openings are formed in the upper end and the lower end of the box; grooves which are matched with bosses are formed in two opposite side surfaces of the box; mounting holes for fixing the grill body are formed in the edge of the top of the box; the charcoal plate penetrates through the side wall of the box and is connected to the inside of the box in a clamped manner; the overall grill has a detachable structure; assembling and disassembling of the box are facilitated; and by the charcoal ash groove at the bottom of the grill, charcoal ash is convenient to collect.