Although theories and methods for land valuation in cities of China are close to perfection, those for evaluation of agricultural land not yet mature. Based on definition of the connotation of agricultural land, the paper states that besides its economic value, agricultural land should also have eco-environmental value and social value, and explores methods for assessing these values, respectively. In the end it puts forth a procedure and technical route for assessing integrated value of agricultural land including its economic, eco-environmental and social values.