The Mujicun copper (molybdenum) deposit is a large copper (molybdenum) -gold and silver polymetallic ore field in the northern Taihang Mountains, which is located in a secondary faulted basin in the upper wall of the detachment zone on the west of the Laiyuan complex rock body with a dumbbell shape, the northern section of Fuping mantle branch structure. This paper analyzes the rock-controlling function and ore-controlling model of the structures in this area based on the metallogenic geological background and latest exploration results. It is concluded thai the deposit was controlled by dio- rite-porphyrite bodies, which intruded in the faulted basin, and its related fracture tectonic system as well as strong wall rock alteration zones. The Muji- con porphyry copper (molybdenum) deposits, skarn iron-copper deposits (such as Futuyu), and hydrothermal vein Lead-zinc-silver polymetallic deposits ( such as He' ergou) jointly constituted a large polymetallic ore field with typical characteristics of serial mineralization.