Regarding to the calculation for stable mass of bottom protection stone under current attack，a large amount of research has been carried out in the domestic and overseas，and a variety of calculation theories have been summarized and put forward，with different calculation methods given in different national codes. Due to different research conditions and backgrounds，different calculation results are often obtained by different calculation methods，which bring more inconvenience to engineers. In view of the above problems，we sort out the calculation methods given in Chinese and common international codes，make comparative analysis based on a project，and summarize the differences and applicable conditions in different methods. The results show that water depth is a sensitive factor affecting the mass of bottom protection stone，which should be significantly considered in the selection of calculation method. American code has better applicability due to more comprehensive in consideration of influencing factors，however，in the strong turbulent water flow condition，the Pilarczyk method and Escaramei & May method of the international general manual are recommended for comparison and comprehensive evaluation to determine the mass of bottom protection stone.