The Meso—Neopreterozoic bimocdal volcanic series on the outski rts of the Dabie higher grade metamorphic basement complex, extens discontinuou sly in the Qichu n—Mulanshan—Yudian area on the southern outskirts, and in the Dingyuan area on the n orthern outskirts of the Dabie basement complex. Calcalkaline series is the ma in volca nic series, the others are tholeiite basalt series and alkali basalt series. The sho shonital series is discovered in the southern outskirts firstly. Besides basalt, bas alticandesite, dacite and rhyolite, hawaiite and mugearite which belong to sho shonital series are descovered at first in this study.