This　paper　deals　with　the　periodic-sampling-based　dynamic　event-triggered　leader-following　consensus　of　the　singleintegrator　multiagent　system　under　a　fixed　weighted　directed　communication　topology.　A　novel　periodic　dynamic　event-triggered　strategy　is　proposed　by　improving　the　triggering　condition.　The　proposed　event-triggered　strategy　can　achieve　larger　triggering　intervals　than　the　existing　strategies　and　thus　effectively　reduce　the　triggering　number.　Finally,　simulation　examples　are　given　to　illustrate　the　validity　of　the　proposed　theoretical　results.　©　2023　Technical　Committee　on　Control　Theory,　Chinese　Association　of　Automation.