Analyzing　two　important　indicators　of　real-time　streaming　media　system,　and　then　aiming　at　the　drawbacks　of　the　conventional　real-time　streaming　media　playout　algorithm　and　the　playout　algorithm　based　on　Differencing　AR,　a　real-time　streaming　media　playout　algorithm　based　on　RBF　(radial　basis　function)　delay　prediction　is　proposed.　The　algorithm　takes　the　initiative　to　adjust　the　time　interval　to　ensure　the　continuity　of　playout　and　reduce　average　buffer　delay　in　different　situation　with　time-based　forecasts　by　predicting　the　receive　time　and　playout　time.　Finally,　compared　with　other　algorithms,　the　experiment　result　shows　that　this　algorithm　is　effective.　©　2010　IEEE.