Abstract: Ko-Lao-Hui developed with Shan-Tang as organizational archetype in the Qing dynasty. Shan-Tangwas a kind of symbolic code name for certain independent Ko-Lao Hui organization. Following the way in the popular story‘ShuiHu Zhuan’( The Outlaws of theMarsh) , every organization used their particular names of oth‘Shan’(mountain) and ‘Tang’( hall). The territory and size of an organization depends on the radius of action aswell as organizing capacity of its leaders. Some were limited to certain nook in a county with only dozens of members, while others spread into different counties in different provinces with members asmuch as tens of thousands.Organization structure of Ko-Lao-Hui was simple at first, but the relationships among innermembers as well as outer organizations became very complex in later ages. Based on such complex and enormous organizations, Ko-Lao-Hui formed a huge but incompact relationship network. This structural characteristic had given Ko-Lao-Hui foundation and dynamic for its expansion.