The invention relates to the field of mechanical manufacturing, in particular to a full-automatic chamfering machine tool. The full-automatic chamfering machine tool of automobile slide bearings comprises a rotary plate, an elastic chuck, a feed mechanism, a position correcting mechanism, a power head and a discharge mechanism. The rotary plate is a quartered rotary disc and placed on a quartered cam divider. The elastic chuck is fixedly connected to the rotary plate and sleeved with the slide bearings. The feed mechanism, the position correcting mechanism, the power head and the discharge mechanism are sequentially arranged on the periphery of the rotary plate. The full-automatic chamfering machine tool is suitable for chamfering including automated sequencing, feeding, clamping, hole finding, chamfering, discharging and the like for the slide bearings, the slide bearings are orderly arrayed through the vibration plate, the disorderly slide bearings are arrayed in sequence one by one and neatly conveyed to machining positions, the slide bearings are clamped and positioned at the machining positions, the positions of small holes are found, and the slide bearings are discharged to be output as finished products after being chamfered.