Abstract: the Ministry of Communication approves Jinghong pert forthe national grade's pert．In fount years，many buildings have been built up in lower reaches of Jinghang pert，however，it make the river regime and the flow form occur great close in short period．It has important political and economic meaning to analyze and research the variation of sedimentation of Jinghong pert and treat it as quickly as possible．According to the field data and the test data，this paper analyses the basic reason OH the variation of sediment accumulation of Jinghong pert，and presents efective treating measures for reference．

Key words: Jinghong Harbor, measures for sedimentation reduction, model test, channd regulation

摘要： 景洪港是交通部批准的国家级港口．近年来在景洪港下游多处修建建筑物，短期内使河势和流态发生较大改 变，分析和研究景洪港的淤积变化并对其及早治理，具有重要的政治和经济意义．本文根据天然实测资料及河工模 型试验资料，分析景洪港淤积变化的基本原因，并提出有效的治理措施供相关单位参考．

关键词: 景洪港, 减淤措施, 模型试验, 航道整治