Abstract: The present invention provides an improved structure of a sprinkler. The invention has a water storage space inside the sprinkler base, so that the water flows into the sprinkler base through water pipe connector. The water fills up the water storage space first and then flows into the sprinkler unit. The sprinkler base is weighed down with water without having other blocks to secure it. The invention not only saves cost but also secures the base as well, which makes it more practical.