In most cases， due to the limits of the size of water sealing material， rubber sealing strips need to be bonded through vulcanized thermal adhesion in engineering projects.Therefore，the joints become the weakest parts to prevet water leakage.According to relevant engineering norms，a standard joint experimental sample shall be without reinforced strips-free.For this reason，jointing parts need to be reinforced with strips according to actual conditions.Taking the application of rubber sealing strips of Mengcheng Water Control Project in the Wohe river as an example，this paper conducts thorough comparative analysis and experiments on various conditions，including reinforced strips or not and different shapes，widths and bonding methods of joints，aiming to provide better technical guidance for the bonding of water sealing joints in the later phases of the project