For　lower　cost　and　better　performance,　different　applications　concurrently　run　in　distributed　simulation　data　centers　(SDCs).　Requests　arrive　in　a　highly　dynamic　way,　and　they　are　difficult　to　accurately　predict.　This　work　presents　the　Revenue-Aware　Request　Admission　Control　(RARAC)　approach　to　intelligently　accept　arriving　requests　by　incorporating　priority,　response　time,　and　revenue,　etc.　Experiments　based　on　realistic　requests　in　Google　data　centers　demonstrate　the　proposed　RARAC　can　greatly　improve　the　revenue　of　SDCs　provider.