Negative ion germicidal lamp

The utility model relates to the field of LED (light-emitting diode) lamps, in particular to a negative ion sterilizing lamp, which has the beneficial effects that a negative ion generator and LED sterilizing equipment are adopted, and the negative ion generator converts low voltage into direct current high voltage through a booster circuit to generate corona, so that a large number of electrons emitted at a high speed are fully utilized; the oxygen is immediately captured by oxygen molecules in the air to form negative ions; the LED sterilization equipment reacts with air to generate ozone, and the surfaces of objects such as table tops and chairs can be effectively disinfected in a close range by utilizing the ozone for sterilization; the germicidal lamp body internally comprises a diffusion plate of which the incident surface is provided with optical microstructures, and the plurality of optical microstructures are isosceles triangles, so that the diffusion angle, the space of a light field and the energy