Collector for collecting water accumulated on indoor windowsill

The utility model provides a collector for collecting water accumulated on an indoor windowsill. An adhesive strip is adhered along the edge of the windowsill on a windowsill plate to form a dam, a drain hole is arranged at a lower position of the windowsill, the drain hole is connected with a flow guider, one side of the windowsill with the flow guider is fixed with the drain hole, and the other end of the windowsill with the flow guider is fixed with the opening of a water collecting container. When water is accumulated on the windowsill, the accumulated water is collected on the dam formed by the adhesive stripe, and finally flows into the water collector through the drain hole and the flow guider by utilizing the siphon action of the flow guider, thus achieving the aim of automatically collector water.