The invention relates to an overhaul handcart used for a 35kV centrally installed switchgear, and solves the shortcoming of the inconvenient operation of the overhaul handcart in the prior art. According to the overhaul handcart used for the 35kV centrally installed switchgear provided by the invention, a sliding plate is glidingly connected with an upper frame body; a framework is fixed on the sliding plate; a control plate for pushing a rod part in the centrally installed switchgear to open a safety door is fixed on the framework; and the sliding plate is driven by a guide screw. In the specific use process, after the handcart is pushed to the centrally installed switchgear in a shaking manner, the guide screw is rotated to enable the sliding plate to move towards the deep place of the centrally installed switchgear so as to enable the control plate to push the rod part in the centrally installed switchgear to open the safety door; at the moment, a technician can enter the centrally installed switchgear to carry out overhaul; compared with the prior art, the operational steps of the overhaul of the centrally installed switchgear are greatly simplified by the scheme provided by the invention; and the overhaul efficiency of the centrally installed switchgear is improved.