Based on the expatiation on the coupling mechanism of land market and regional economy, this paper introduces the coupling coordination degree model to research coupling coordination relation between land market and regional economy over the period of 2005-2012 in Chengdu city. The result indicates that coupling coordination degree has generally an upward trend during the above-mentioned period, with the four-phase procedure of extreme imbalance, general imbalance, barely coordination and primary coordination. Unbalanced development of land market is the main factor affecting the degree. The key to promote the coordinated development of them is to strengthen the management of land market so as to ensure the stable development of land market.