For the moment,Xijiang trunk channel is facing problems on obstruction in the lower reaches,the middle reaches,the upper reaches and branches,which is impeding the healthy development of inland water transportation with the Pearl River.Based on the development characteristics of inland channel freight volume in Guangxi and relevant freight volume prediction conclusions,we conduct a analysis on blockage points of Xijiang shipping trunk channel and its main branches from the perspective of channel throughput capacity,systematically analyze the calculation formula for channel throughput capacity in different sections,and summarize corresponding problems of blockage points in the Xijiang trunk channel and its main branches based on the actual situation.We propose solutions and suggestions from the perspectives of providing better facilities,improving maintenance and operation management,promoting ship-type development,which can provide technical supports to help the governmental departments on having better sector management and improving better shipping services.