The relationship of the ore body location to types of magmatic rocaks, ore kinds and open closed conditions of geological structures in hydrothermal deposits related to magma is discussed, and the origin of the equihighness of orebodies, which is a common sight in some deposits, is interpreted applying fundamentals of the U like tube.

Based on the technical conditions of mining of Hetai Gold Mine and the experience and lessons, now designing shallow-hole shrinkage stopping should be according to existence of ore body, and also consider jamb stopping and disposal of hollow areas, to obtain good results in technological economy.