A wheel blank inspection device is composed of a rack, a lower adjusting guide rail, a lower adjusting cylinder, a first left sliding table, a first gear rack, a first right sliding table and the like. A wheel rotates a circle at a low speed, when a first piezoelectric sensor, a second piezoelectric sensor and a third piezoelectric sensor do not pick up signals and probes of a first intelligent meter, a second intelligent meter and a third intelligent meter are in a compressed state all the time, the wheel blank is qualified, otherwise, the wheel blank is deformed greatly and unqualified. After inspection, the qualified blank enters a normal lower transfer roller bed, and the unqualified blank enters a reject roller bed.