Marine manual fire alarm button

The utility model relates to an alarm button, and particularly relates to a marine manual fire alarm button which is applicable to large and medium-sized ships, harbors, wharfs, offshore oil platforms and government official ships. The marine manual fire alarm button is characterized in that the upper part of a base is provided with a sealing cover, the bottom part of the sealing cover is provided with a sealing shell extending into the base, the sealing shell is internally provided with a horn control assembly, the upper part of the sealing cover is provided with an upper cover which is fixedly connected with the sealing cover, the upper part of the sealing cover is provided with a microswitch, a waterproof sleeve is arranged above the microswitch, the upper part of the waterproof sleeve is provided with a pressing plate which is movably connected with the upper cover, the bottom part of the pressing plate is contacted with the waterproof sleeve, the pressing plate and the sealing cover are connected in an elastic manner through a return spring arranged therebetween, the pressing plate is internally provided with a light guide column, and the microswitch and the light guide column are in control connection with the horn control assembly. The marine manual fire alarm button is compact in structure, high in automation degree, complete in function, reasonable in arrangement and excellent in use performance.