Abstract: Qinghai Province is located in the northeast of Qinghai-Xizang plateau，Northern Qinghai Province belongs to Qinqikun orogenic system，Southern Qinghai Province belongs to Sanjiang orogenic system，in terms of metallogenic belt，Northern Qinghai Province belongs to Qinqikun metallogenic domain，Southern Qinghai Province belongs to Tethys metallogenic domain，graphite deposit is relatively developed.The graphite deposits are mainly distributed in Qaidam peripheral region of Qinqikun metallogenic domain in Northern Qinghai Province，proterozoic metamorphic old strata is widely distributed in the area，the metallogenic geological conditions is favorable，many regional metamorphism type crystalline graphite deposits (points) are found，the prospecting prospect is good.Based on the newly geological investigation results and some related study results of Qaidam peripheral region，metallogenic geological background，distribution of graphite deposit are discussed，geological characteristics，metallogenic regularity，metallogenic prospect area，metallogenic geological conditions，metallogenic epoch，metallogenic temperature and pressure conditions，carbonaceous source，deposit genesis and metallogenic model of typical graphite deposits in the area are further summarized and studied，besides that，availiability of graphite deposit is evaluated.The study results show that:①in terms of the ore-bearing strata of graphite deposit in Qaidam peripheral region，Northern Qaidam is mainly for Ancient proterozoic Dakengdaban rock group，Southern Qaidam is mainly for Ancient proterozoic Jinshuikou rock group，which is rich for organic matter，carbon isotope test results indicated that carbonaceous source is the organic matter of stratigraphic deposit;②graphite deposits are distributed along proterozoic metamorphic old strata and tectonic belt，affected by magmatic activities，the distribution scale is general，but the mineralization scale is large，size of orebodies is general，ore grade is high，ore quality is general;③Qaidam periphery region can be divided into three graphite metallogenic belts，four metallogenic subbelts and six metallogenic favorable sections;④the metallogenic epoch of crystalline graphite deposit in Qaidam peripheral region can be divided into sedimentary diagenetic stage，regional metamorphism stage and tectonic-magmatic superposition transformation stage，the metallogenic temperature and pressure conditions are available，metallogenic epoch is Caledonian，deposit genesis belongs to regional metamorphism type graphite deposit;⑤recovery rate of the crystalline graphite deposits in Datonggounanshan，Northern Huangkuang Mountain and Balemuteer are higher than the ones of other areas，a number of industrial valuable regional metamorphic type graphite deposits are developed in the above three areas，the availability of graphite ores is good.

Key words: Graphite deposit, Geological characteristics, Metallogenic stage, Metallogenic condition, Deposit genesis, Availability evaluation