The main lifting system is the key equipment in full balancing vertical ship lift.Taking shuikou fully balancing vertical ship lift as an example,we put forward the running speed curve of ship reception chamber,precise stop control method of ship reception chamber and lock heads backwater gate,and accident emergency protection principle and key parameters calculation method.The practicality of the speed curve is verified by the experiment of different speed.From the view of kinematics,the principle of accident emergency protection is analyzed,and calculation formula and method of key parameters are determined.We calculated brake delay time and slide stroke by multiple sets of ship reception chamber water depth datas,which were basically the same with field test data.The correctness of the principle is verified by theory and practice.