The Taishan Group in western Shandong is the typical Late Archean greenstone belt in China. And the komatiites are well developed and preserved in it. At present, the geologic knowledge of it basically consists with each other. However, the understanding of greenstone belt gold deposits in western Shandong is still superficial. Research mainly focused on the ductile shear zone type gold deposits, but cared less on the greenstone belt strata-bound type gold deposits. Moreover, researchers remain a fuzzy cognition on their ore source beds, and simply and generally considered the Taishan Group as the ore source beds of all the late gold deposits. Based on the systematic introduction of the ductile shear zone type and strata-bound type gold deposits of greenstone belt in western Shandong, we believed that the later possessing primary layered characteristic and ore source bed meaning is obviously controlled by some specific horizon. It is the development result of the formation cycle of the ultrabasic rock - basic volcanic rock - clastic sedimentary rock. Besides, the discussion on the formation and development mechanism of gold ore source beds shows that the initial deposition and mineralization horizons of gold are very narrow, with a width of just 1 to more than 10 meters, but with an extensive lateral distribution from 5 to 10 km in length. Meanwhile, the initial deposition grade of gold is generally 10×10-9~0.5×10-6. Furthermore, It elaborates the relationship between the gold ore source bed and the banded cherty iron formation (Anshan type iron deposit) that are bound up and associated with each other. The gold ore source bed are characterized with polycycle deposition, that is the same with the banded cherty iron formation. Finally, the ductile shear zone type gold are controlled by the inherent distribution law of them and deposits all occur in or around their ore source beds.