The utility model discloses a quick -witted bucket is dug in trapezoidal escape canal, including the bucket bucket body, the both sides of bucket bucket body all are equipped with first angle steel and second angle steel, the one end of first angle steel and the welding of the one end of second angle steel, the other end of first angle steel and the welding of the one end of third angle steel, theother end of third angle steel and the welding of the one end of fourth angle steel, the other end of fourth angle steel and the welding of the one end of pentagon steel, the other end of pentagon steel and the welding of the other end of second angle steel, the equidistant fixed a plurality of strengthening ribs that are equipped with between first angle steel and the fourth angle steel. This scheme matches through two third angle steel, two fourth angle steel, two pentagon steel and bucket bucket body can once only excavate out " trapezoidal basic slot ", have that construction speed is fast, basis excavation size is accurate a bit, construction quality is high simultaneously, has high efficiency, accuracy, practicality.