Low-latency　video　applications　are　widely　used　in　video　communication,　video　surveillance　and　other　real　time　scenarios,　of　which　the　low-latency　video　coding　technique　is　the　key　component　to　reduce　the　coding　complexity　and　transmission　delay.　The　fixed-period　intra　refresh　in　video　coding　are　capable　of　reducing　inter-frame　bit　rate　fluctuation　and　recover　delivering　error.　In　this　work,　we　propose　a　novel　fixed-period　intra　refresh　method　to　further　improve　the　coding　efficiency　and　error　resilience　of　encoded　bitstream　by　rearranging　the　refreshing　order　according　to　the　blocks　importance-ranking　joint　considering　reference　importance　using　motion　statistics　and　coding　complexity　leveraging　rate-distortion　cost　of　the　encoding　frame.　Experimental　results　demonstrate　that　our　proposed　method　obtains　smoother　bitrate　and　higher　coding　efficiency　of　up　to　4.6%　BD-rate　reduction　compared　with　previous　method.　©　2021　IEEE.