本文以环境经济学的视角分析西安世园会,它产生了一定的经济、人文效益,拉动了西安乃至周边经济增长,带动西部生物产业的战略性崛起,推动了产业结构的合理规划,提高环保意识等,体现了其正外部性。相应的也要避免外部不经济的产生,降低风险:鼓励联合参股,分散风险;联合周边地区,产生地区联动效应;合理配置资源,拓宽就业渠道。 This paper analyzes the Xi’an Horticultural Exposition from the perspective of environmental economics, which has produced some economic and humanistic benefits. It has stimulated the economic growth in Xi’an and the surrounding area and promoted the strategic rise of the western biological industry. It promoted the rational planning of industrial structure and environmental protection Consciousness, etc., reflects its positive externalities. Correspondingly, we should also avoid the occurrence of external ineconomies and reduce risks: encouraging joint participation and diversification of risks; joint surrounding areas, resulting in regional linkage effects; rational allocation of resources and widening of employment channels.