Abstract Inthe new century economic globalization and integration ofregional economy have already e twomajor gends ofpolitical economic development or multilateral cooperation along border areas isbeing developed serve as the nodes and keypoints intheregional cooperation;interactions andintegrations between cities haveimpacts on possibilities andprocess oftransnational cooperation. Based on thetheoriesand methods inrelevantsciences including economic geography, urbangeography,regional economic geography,regional economics,international trade cooperation,this thesisputs forward theconcept of“geo-city”.By reviewing existing theories onurban integration,this thesisfirstdefinestheintension oftransnationalintegration ofgeo-cities,clarifies general models oftransnational integration ofgeo· then carrying out acase study on Heihe andBlagoveshchensk,this paper putsforward measures on how toadjust andoptimize theintegrative relationbetween the two cities on analyzing the interactionsandintegrationdevelopment ofboth basisofpractical analysis on Heihe and Blagoveshchensk,this thesis summarizes general characters,dynamic mechanism aswellasregional effectsoftransnational integration ofgeo- full text carlbedivided into threemajor parts: The firstpartexplains onceptions intheory and isthefoundation ofthissubject. Firstthispartputs forward theconcept ofgeo-city,reviews theexisting theories ofurban integration,and then defines the basic intension oftransnational integration ofgeo-cities, laying emphasis on summarizing integrative patterns ofgeo-cities inthelight ofexisting experiences athome and —city is acity that undertakes certaintask inthegeo-area. The transnational integration ofgeo—cities is one kind inthetype ofurbanintegration,which mainly refers tothe course ofthegeo-city’S interactionandintegration with theopposite cross the models oftransnational integration ofgeo-ci