The theme of this paper concentrates on hydro- projects' seepage field in rocks, including the properties of the seepage which flow through both hole qualitative like rocks and fractured rocks. Present the finite element analyzing program which can solve the problem of three dimensional seepage field in hole qualitative rock medium. Apply the program some hydro-project, computed the seepage field in the dam foundation and dam abutments. Besides, further research is done on the decision of the model range limit. And the influence of the pariah shape. Seepage is an important factor which influences the distortion and stress state of the Dam, as well as the stability of the skewbacks. Usually, large seepage pressure leads to the wreck of the waterworks. As a result, computation of the seepage field in rocks is indispensable in the design and running of the hydro-projects [1]. However, the seepage characteristics and the boundary are often complex, especially the dam is on the deep pervious fracture rock foundation
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