Abstract: The current urban eco-environmental evaluation system is complex and uncertain, the evaluation index is chaotic, and the portability is poor. Based on the Analytic Hierarchy Process (AHP) and the Coefficient of Variation (CV), in combination with subjective and objective weighting method, a more versatile urban ecological environment evaluation system and evaluation model was constructed. This model was used to evaluate the urban ecological environment of Tianfu New District directly under Chengdu City. The results show that the urban ecological environment rank level of this area is good in overall and the level of good or fairly good and average account for 71.07% of the total area, which are mainly distributed in the central and southern area. The level of poor accounts for 28.93% of the total area, which is distributed in the northwest and eastern border of the area. This evaluation method has high accuracy, simple and practical assessment system, which can provide a new idea for urban ecological environment assessment.