The relationship between urban and rural development is key to social stability in process of urbanization. In this paper, we set up a model which discusses the development of urban and rural in two states including fragmentation and flow. We find that knowledge, labor and capital encourages the balanced growth between urban and rural areas while biased investment and price intervention raise the imbalance and offset the promoting effect of urbanization. Using provincial panel data of China, we verify the above conclusion. We suggest that promoting balanced investment of government and reducing price intervention would encourage balanced development of urban and rural in the process of urbanization.

正确处理城市化进程中的城乡发展关系是一个关系到社会稳定的问题。本文通过建模分析城乡割裂和流动两种状态下的城乡经济发展状况，发现城市化通过知识、劳动和资本三方面的流动作用促进城乡间的平衡增长，而政府的投资偏向和价格干预行为能够加剧割裂状态下的城乡发展不平衡和抵消城市化对城乡平衡发展的促进作用,利用中国省际面板数据的实证分析也验证了这一结论。因此在继续推进城市化的同时，要注重政府投资的平衡和减少对产品市场的价格干预，这样才能早日实现城乡的平衡发展。