The invention discloses a novel sagging fire-fighting sprinkler which comprises a sagging splash disc, water pipes, a screw base, and an organic liquid; the organic liquid fractures at high temperature, the water pipes work, and water is splashed through the splash disc. The novel alarm dual sagging fire-fighting sprinkler has beneficial effects: the coefficient of thermal expansion of the organicliquid is high, the organic liquid expands along with rising until a glass body fractures, a sealing element losses support and is washed away by water streams, water spraying for fire extinction isstarted, the addition of the water pipes can increase the flow quantity of water streams, more water is sprayed out from the sprinkler, and the effect is better.