Conventional　microgrids　that　employ　droop　control　may　experience　challenges　related　to　frequency　and　voltage　offsets,　which　can　pose　risks　to　power　system　safety.　Furthermore,　the　use　of　continuous　communication　in　traditional　control　systems　can　result　in　technical　and　financial　challenges.　This　paper　introduces　a　fixed-time　dynamic　event-triggered　secondary　control　for　islanded　microgrids,　designed　to　achieve　frequency　restoration,　voltage　regulation　and　active　power　sharing　within　a　specified　timeframe.　This　distributed　control　approach　relies　solely　on　information　from　each　distributed　generator(DG)　and　its　neighbours.　Each　DG　receives　communication　from　its　neighbours　and　concurrently　broadcasts　its　own　information　only　when　certain　deviation　were　reached,　thereby　minimising　communication　costs.　Several　simulated　instances　illustrate　the　usefulness　and　robustness　of　this　control　method,　including　scenarios　involving　load　changes,　time　delay　and　topology　switching.