Turbulent　model　of　power　law　fluid　was　presented　according　to　power　law　fluid　constitution　equation　and　the　influence　of　flow　exponent.　Using　semi-implicit　method　for　pressure-linked　equations,　the　numerical　computations　were　worked　out　for　power　law　fluid.　The　result　was　satisfied　with　the　experiment.　Analysis　of　the　result　indicates　that　the　variation　tendency　of　power　law　fluid　turbulent　flow　is　varied　according　to　the　variation　of　flow　exponent.　It　is　concluded　that　the　material　parameter　-flow　exponent　has　an　important　influence　upon　turbulent　flow.