The invention relates to a lacrimal ductule stone removing device and a lacrimal ductule stone removing method. The lacrimal ductule stone removing device comprises a probe and a guide wire, wherein aprobe cap end connected with an injector is arranged at one end of the probe, the other end of the probe is a closed end, a side hole penetrating through the side wall is formed in the side wall of the probe and close to the closed end, and a mark line is arranged in the position, 12 mm away from the closed end, of the side wall of the probe; and the guide wire comprises an elastic tow as well asa single-strand wire A and a single-strand wire B connected to two ends of the elastic tow respectively, one single-strand wire penetrates through the probe from the probe cap end, is pulled out of the side hole and tensioned and fixed with the other single-strand wire on the side of the probe cap end, so that the elastic tow is tightly closed to the side wall of the probe. The lacrimal ductule stone removing device and the lacrimal ductule stone removing method remove stone in lacrimal ductules by using low-cost medical materials and a simple operation method, consider protection of dacryonand lacrimal ductule structures and functions, and are a device and a technology easy to promote.