Abstract: According to the data obtained from the simulated experiment and the other related data collected,the relationship between bedrock water table and flow distance in a single fracture under different conditions have been studied.The statistic equations between the bedrock water table and the distance have been established.And it is compared with the former.Conclusionsare drawn as followings:a.to unconfined flow,the cube of bedrock water table is proportional to the flow length,to the confined flow,the bedrock water table is proportional to the flow length;b.to the confined,the statistics results show no difference with the former study,to the unconfined,the statistics results are inconsistent with the traditional equations,but they are consistent with the results by Sun Fenggen;c.the statistics conclusions are of important reference value in studying the theory of the bedrock water motion.