Abstract: Taking the protection of the tidal bore landscape and the reduction of its flood hazards into consideration, it is proposed to rebuild the tidal bore in the Jiuxi reach of the Qiantang River so as to improve the landscape. The tidal bore will thus be viewable, controllable and safe. On the basis of measured and verified hydrological data, by using a 2D numerical model of the tidal bore based on the application of KFVS (kinetic flux vector splitting) format, the flow field before & after the project and the characteristics of the tidal bore propagation are simulated; a comprehensive evaluation is made of the rebuilding effect of the tidal bore based on the three factors which are the height of the tidal bore near the structures, the length of the coastline and the regional area where the obvious surge height exists. The physical model test to simulate the tidal bore formation and propagation is also applied in order to verify the effect of the rebuilding. Analysis and comparisons are conducted on the pre-and post-project conditions of run up height and overtopping among all the optimized schemes to further support the results of rebuilding the tidal bore. It is found that by optimizing the project layout and taking project measures, rebuilding the tidal bore in the Jiuxi reach of the Qiantang River is feasible. The characteristics of the Jiuxi tidal bore can be reserved and viewing the tide safely can be achieved in the meantime.