One　single　geo-spatial　web　processing　service　cannot　complete　complicated　geographic　processing　task.　Combination　of　services　is　a　common　way　to　handle　the　problem.　This　paper　proposes　a　way　to　integrate　geo-processing　web　services　by　workflow　technology.　A　geographic　flow　model　is　given　from　the　business　process　model　and　a　new　node-human-resource　way　is　suggested　to　integrate　services.　The　paper　also　shows　the　geographic　process　services＇　access　and　binding　pattern.　At　last,　a　prototype　system　of　geographic　web　service　workflow　engine　was　built　up　to　confirm　the　hypothesis.　A　LIDAR　data　preprocessing　process　is　tested　as　a　first　test　case.　©　2012　Springer-Verlag　GmbH.