This paper in the comprehensive analysis of related domestic and foreign scholars, on the basis of analysis on relationship between house price and land price, using the urumqi city 2003-2010 quarterly data of housing prices and land prices in by means of correlation analysis model, granger causality test and variance analysis model and nonlinear regression analysis and other statistical analysis model of house prices and land prices causality and mutual influence of significance level, and analyzing the influence degree. The research results show that the urumqi city land price change is the important factor affecting the price changes, impact on house prices is of high significance, influence degree is bigger.