Huangling granite batholith, along with Hannan and Liyuzhai granite batholith, constructs a low-K granite belt in the northern periphery of Yangtze Platform. It is disintegrated into Sandouping, Huanglingmiao, Dalaoling and Xiaofeng suites, comprising 14 units, whose emplacement ages are between 832 and 750 Ma. Sandouping and Huanglingmiao suites consist mainly of tonalite, trondjemite and granodolerite, being syntectonic granitoids emplaced at the ductile domain 16 km deep under the action of SN-strikingregional compression. Dalaoling and Xiaofeng suites, belonging to calc-alkaline series, are late-tectonic granitoids emplaced at the brittle domain (5 and <1.5 km in depth respectively) formed during rapid uplift of the crust. Based on major and trace elements and isotope geochemical data, it is inferred that Sandouding suite is formed by magma melting of Late Archeozoic continent tholeiite source, and its geochemical variation is controlled by hornblende fractional crystallization. Besides fractional crystallization, the geochemical variation of Huanglingmiao suite is related to the mixing between dacitic magma and felsic magma. Dalaoling suite is probably derived from early Precambrian volcanics.