Abstract: This paper comparatively studied major elements of fresh, altered, mineralized lampro-phyres in Laowangzhai gold deposits area, Yunnan Province, preliminarily discussed the migrating law of major elements in lamprophyres during alteration and mineralization in this area, and advanced the way of distinguishing three types of lamprophyres, The results of major elements comparison have significane for discussing further the genetic relationship of lamprophyes and gold mineralization.