The invention discloses a car navigation device capable of ultra-strong electronic shock protection, Including a bottom plate, The upper surface of the bottom plate is fixedly connected with a shock absorbing device, the top end of the shock absorbing device is fixedly connected with a stopper, the left side surface of the shock absorbing device is fixedly connected with a fixing plate a, the leftside surface of the fixing plate a is clamped with a screw cap, the screw cap is internally threaded with a screw column, and the right end of the screw column is fixedly connected with a screw ring;When the driver needs to better view the content on the navigation device body, the driver pulled the two pulling tabs away from each other, so that the two sliding rods are separated from each otherto drive the two connecting plates away from each other, The friction pad a and the friction pad b are no longer in contact with each other, and the driver releases the two pull rings while the spring b is elongated, so that the two connecting plates a clamp the navigation device body again, so that the friction pad a and the friction pad b clamp and fix the navigation device body again, therebyfacilitating the driver to view the contents on the navigation device body.