The Shapolin Mo deposit in Luoning in western Henan Province, which is located in eastern part of the Eastern Qinling molybdenum ore belt in southern margin of the North China craton, is a veinlet-disseminated type molybdenite deposit newly discovered in the hypometamorphic rocks of Archean Taihua Group. With the research of geological features and the Re-Os isotopic dating of one sample, the results obtained show that the model age of molybdenite in the quartz veins is 126.8±1.7Ma. It shows that the Shapoling molybdenum deposit was formed mainly in the stage of Yanshan, similar to Jinduicheng and Leimengou Mo deposit. According to the content of Re isotope, the ore forming materials mainly derived from upper mantle. Considering the complication of formation mechanism of the Shapoling molybdenum deposit, further research is needed. Deep drilling is also necessary so that we can verify the existence of deep-concealed porphyry bodies and porphyry type of Mo orefield of larger reserves and the potential of prospecting and exploration is great.