This　paper　focuses　on　the　video　distortion　which　is　caused　by　the　packet　loss.　Considering　the　relationship　between　the　human　visual　perception　which　is　caused　by　the　packet　loss　and　the　visual　characteristic　of　the　video　content,　we　present　a　no-reference　model　for　video　quality　assessment　based　on　Support　Vector　Machine.　The　feature　vector　of　the　SVM　contain　temporal　complexity,　spatial　complexity,　the　average　number　of　bits　per　frame　and　the　packet　loss　rate.　Temporal　complexity,　spatial　complexity　and　the　average　number　of　bits　per　frame　represent　the　visual　characteristic　of　the　video　content.　The　value　of　the　packet　loss　rate　means　the　distortion　which　is　caused　by　the　packet　loss　intuitively.　Experimental　results　show　that　this　model　has　a　good　consistency　with　the　subjective.