The river-lake delimitation is being carried out throughout the country，with different conditions in different provinces and different techniques and methods in the delimitation work.How to take into full consideration the realities of Jiangxi province to effectively promote the work of river-lake delimitation，the scientificalness，rationality and feasibility of the technical scheme of river-lake delimitation work is particularly important.Based on the practice of demarcation for rivers and lakes，this paper analyzes the project background，technical scheme research，and project implementation experience，and provides the suggestions for the demarcation of rivers and lakes，the technical scheme study of river-lake delimitation in Jiangxi province.