Disclosed in the utility model is a lifting pin device for a chip sorting device. The lifting pin device comprises a lifting pin sleeve, a lifting pin shaft and an installation seat. The liftable lifting pin shaft is arranged in the lifting pin sleeve; a lifting pin is fixed at the top end of the lifting pin shaft; the lifting pin shaft is connected with a lifting pin shaft drive device driving the lifting pin shaft to make up-and-down motions; and a lifting pin hole for penetrating of the lifting pin is arranged on the lifting pin sleeve. An adjusting seat for adjusting the position of the lifting pin sleeve is sleeved at the outer side of the lifting pin shaft; the lifting pin sleeve is fixedly connected to the adjusting seat; and the adjusting seat is fixedly connected to the installation seat. According to the lifting pin device provided by the utility model, the position of the adjusting seat is adjusted and the lifting pin sleeve is driven to make movements, so that the axises of the lifting pin and the lifting pin hole can be adjusted to be in a basic coaxial state and thus the chip arrangement precision can be substantially improved. The lifting pin can be replaced conveniently and rapidly; and when the lifting pin is replaced, only the lifting pin sleeve is needed to be removed for the replacement; and after the replacement, the position of the adjusting seat is adjusted by the lens to drive the lifting pin sleeve to make movements, and the lifting pin and the lifting pin hole for penetrating of the lifting pin of the lifting pin sleeve are observed and adjusted, so that the lifting pin and the lifting pin hole are coaxially arranged.