To the problem of placement modes of accropode widely used at home and abroad,this paper compares and analyzes the relevant industry regulations at home and abroad,and finds that the foreign industry norms all stipulate the random placement mode,while the Chinese industry norms add the regular placement mode,specifically the queue-type regular placement mode.By using the wave cross-sectional physical model test,the stability test of three common placement modes is verified,and it is found that random placement mode has the best stability,followed by positive and negative regular placement mode,and queue-type regular placement mode has the worst stability.The current industry standards in our country use the KD value of the stability coefficient for accropode,which is not applicable to the queue type regular placement mode.Using this value will result in calculation results that are biased towards danger.