In this paper, according to principles of Prince Rupprencht's distribution and productivity,it's climatic ecological indices were determined. The quantiative index system wasestablished to analyze and evaluate the ecological adaptation of Larix Prince Rupprencht.It includes the Growth-Therm-Index (GTI), the Growth-Moisture-Index(GMI) and the Growth Moisture-Therm-Index (GMTI). GMTI was applied to classify the ecological adaptation of thenatural distribution area of Larix Prince Rupprenct and the result was ...