Abstract: Abstract: The breakthrough in tin exploration in the Qitianling area, Hunan Province, is a major achievement scored in the large? Juan scale The Land and Resources Survey in the last two years. Tin deposits in the area occur as veins in the southern part of the Qitianling composite granite body and its contact zone. The dominant tin deposit types include the greisenized granite type, altered porphyritic granite type and altered structural belt type, all of which are characterized by wide and thick orebodies, strong alteration, high tin grade and high performance of ores. At present, tin resources are estimated at about 600000 tons, and, in addition, the northern part of Qitianling with similar metallogenic conditions and other districts in the same tectono? Juan magmatic belt are also promising. More fruitful results will be achieved when the large? Juan scale The Land and Resources Survey is carried out further.