Abstract: With the vigorous development of terraced hydropower in the lower reaches of the Jinsha River, the impact of water discharge on the downstream riverbed and shore line is gradually revealed. This study attempts to use a comparative analysis of government and civil data and image data before and after field observations, visits and water leakage. Explore the root causes of the problem and ways to avoid the seriousness of the problem. In order to provide a reference basis for protecting the Yangtze River and repairing its ecological environment by unite as one. It is found that the discharge of clear water has a more obvious effect on some riverbed and shore resources in the Jinsha River section below the dam site of the Xiangjiaba hydroelectric power station. Such as the river section of the original common sand beach, gravel beach in addition to Yangwan Pier only one sand island, the rest of all disappeared. The top-punch ingressled and caused more than half of the loss of unguarded river floods，and even causes the beach collapse. A dam on the Baijia Beach embankment will be drained. The third phase of the Shuifu Port expansion project has aggravated the adverse effects further on the Xiaoan Bank dam in The town of Anbian, Sichuan Province. Severe undercorrosiation lateral erosion caused a significant drop in the water level of the river during the same period. It also poses a safety hazard to the production and life of the residents on both sides of the shore line. The author thought that the relevant parties have insufficient understanding of the particularity of the region and the impact of the construction of hydropower stations. Contradictions with the development, interests, environmental protection needs is the root cause of the problem. Problems arise and lack effective communication mechanisms.