中国东北是城市化水平较高、城市组群发育较多的老工业区。作者以东北地区中部的一组近域城市——长春和吉林两市为例,以老工业基地改造与振兴为背景,分析了其近年呈现强劲势头的整合发展现象,并从理论与实际相结合的高度,规律性地总结了城市组群整合发展关系的演化过程和一般模式。论文指出：中国的城市整合发展历程始于20世纪90年代,目前还处于发展初期,整体考虑城市组群地域的长远战略,合理组织组群城市在区域中的分工,追求双赢和共同发展是最佳选择;城市组群的整合关系主要体现在发展类型关系、发展模式关系和空间关系三个方面,而且这种类型、模式和空间关系往往随着城市组群整合发展关系的逐渐深入而向深层次演化;城市整合发展关系的调控有三种机制：行政协调机制、协商机制和市场协调机制。从我国的国情和城市整合发展现状及趋势来看,这三种协调机制必须同时存在,共同发挥作用,但是不同时期各种机制的作用和地位有所不同。

This paper analyses the powerful integration relation phenomenon between Changchun and Jilin in recent years. At the same time, integrating theory with practice, the paper summarizes the evolution course and general model of integration development relation of cities group. The paper indicates it is the best option to consider long-term strategy of cities group holistically, organize its division of labor in region rationally and pursue double win and common development. Three kinds of relations are embodied for cities group integration, and they are type, model and spatial relation. Simultaneity, every kind is classified and expatiated. The paper probes into economy relation, foundation facilities relation, ecosystem environment relation and compound one for type relation of cities group integration. When referring to model relation of cities group integration, this paper generalizes three kinds for it, which include the model of complementary between elements and industry, the model of the urban function substituted and integrative development. Also, we find the spatial relation of integration development of cities group can be plotted out as the following subsections: node-district space, corridor space, cyberspace and the extended space of integration. We talk about three mechanisms apropos of the adjustment of integration development of cities group. The first one is the mechanism of the administration coordination carried out generally through the government of higher level, institution striding district and relevant urban government. The second kind is the mechanism of consultation, which means establishing integration nexus by participating independently, consulting collectively, compromising appropriately and promise together, and the last kind is the mechanism of market coordination. On the basis of the situation of China and the present condition and trend of urban integration development, these three kinds of coordination mechanisms must exist synchronously and function together. But the function and position of various kinds of mechanisms is dissimilar during different periods. In earlier and initial stage of integration development, with the assistant of consultation mechanism, administration mechanism is given priority to; it is still the administration mechanism that is in highest fight, and the market mechanisms complement it in middle period; and administration mechanism and market mechanism are laid equal stress on during later stage. And lastly, we consider the government should play the role of guiding and adviser one, cultivate the market mechanism actively, make relevant policies and regulations for the trans-regional following of production factors, and remove various kinds of obstacles between cities. After the urban integration enters a new stage of development, the function of the higher government of a city will fade out gradually, while the service function of the urban government will be stressed further, which serves as an important service, bridge and guidance function for urban integration development.