Abstract:The study established a set of evaluation index system containing 24 indexes for land resource ecological security (LRES) under P-S-R framework model, divided LRES of the Wanjiang City Belt (one axis, dual cores, two wings) into 5 levels of no warning, slight waning, middle warning, serious warning and heavy warning, and then analyzed LRES, its spatio-temporal changes and the influential factors by using the methods of cloud model and entropy weight. The results showed that from 2005 to 2013 the alarm level of LRESs of six cities in the axis tended to rise, while that of Hefei tended to decline. Resource-based cities of Ma'anshan and Tongling had been heavy warning level, facing serious pressure of LRES. Only LRESs of Chuzhou and Xuancheng in the dual core and the two wing were relative good. Overall, the alarm level of LRES in Wanjiang City Belt was worsening and the overall situation tended to deteriorate. The change of alarm level of LRES in Wanjiang City Belt reflected the pressure response of rapid economic growth to the land resources. The cloud model analysis on LRES alarm showed that the measures, such as presenting land saving and intensive innovative mechanism, increasing financial investment for ecological construction and environmental protection, optimizing the industrial structure of Wanjiang City Belt, developing the low-carbon and circular economy, should be taken to ease the regional alarm level of LRES and promote sustainable use of land resources.