The invention belongs to the field of track traffic application, and more specifically relates to an impact-resistant high-speed train equipment cabin composite bottom plate, and a preparation methodand applications thereof. The impact-resistant high-speed train equipment cabin composite bottom plate successively comprises, from inner to outer, a first layer which is prepared from a carbon fiberunidirectional cloth prepreg, a second layer which is prepared from PET foam or NOMEX paper honeycomb, a third layer which is prepared from the carbon fiber unidirectional cloth prepreg, a fourth layer which is prepared from a hybrid fiber prepreg, a fifth layer which is prepared from a carbon fiber plain weave fabric prepreg, and a sixth layer which is prepared from a polyurethane fireproof coating layer, wherein the hybrid fiber prepreg is prepared through blending weaving of ultrahigh molecular weight polyethylene and carbon fiber. Compared with conventional composite plates, the advantagesof the impact-resistant high-speed train equipment cabin composite bottom plate are that: the weight is lighter, the impact resistance is improved obviously, especially the resistance stability on low energy impact by sharp objects is increased greatly, and at the same time, excellent fire resistance is achieved.