Abstract: A searching method of expected slide path in rock mass based on domain-divided statistics model of joints and the rock mass stress field is presented. Firstly the treating techniques to produce domain-divided statistics model of joints on interfaces between sub-domains are described. Then the formulas of slide resistance reserve in specified orientation and local location in rock mass based on Einstein’s theory and rock mass stress field are developed. Finally,the expected slide path based on searched slide paths,the deviation estimation in the sense of probability,and some numerical results are shown.