The invention discloses a vehicle-mounted computer core component protection box of a new energy automobile. The vehicle-mounted computer core component protection box comprises a shell, first sliders, first springs, first fixed blocks, a first connecting rod, a second connecting rod, an installing seat, a second slider, a second spring, a second fixed block, a telescopic rod, a first limiting ring, a third spring, a shell cover, a hinge and a hasp lock. The bottom of the inner wall of the shell is provided with first sliding grooves symmetrically. The first sliders are slidably connected to the inner walls of the first sliding grooves. The first springs are fixed to the ends, away from the first sliders, of the inner walls of the first sliding grooves, and the ends, close to the first sliders, of the first springs are fixedly connected with the first sliders. The first fixed blocks are fixed to the tops of the first sliders. The tops of the inner walls of the first sliding grooves areprovided with first slideways matched with the first fixed blocks, and the first fixed blocks are slidably connected with the first slideways. The vehicle-mounted computer core component protection box of the new energy automobile is simple in structure, three-level shock absorption can be conducted on a computer core component, the shock absorption effect is good, and ventilation and heat dissipation are convenient.