Abstract: Granitic pegmatite veins outcropped widely and some veins developed rare metal or rare polymetal mineralization in Guanpo of Henan Province, which possess great research value and prospecting potential. The authors researched the features and origins of the granitic pegmatite through field geological survey, petrographic observation and element geochemistry analysis. The results show that granitic pegmatite veins have the characteristics of centralized distribution, relatively stable extension, large scale, completely developed structural belt and complicated mineralogy. The granitic pegmatite veins have high silica content, rich alkali and peraluminous, and they also have low iron, magnesium, calcium and titanium content. They may have good affinity to Huichizi granite in the aspect of origin, and thus the authors speculated that they could be the products of the highly evolved granite. This study further improved the research level of the granitic pegmatite, and provided references for the prospecting of rare metal deposits in the study area.