The utility model provides a vehicle-mounted storage battery bearing bracket, comprising a bearing part and a linking part, wherein the bearing part is a concave surface body which is provided with a side surface and a bottom surface which are integrated into a whole; the linking part is of a strip plate structure and the bearing part is linked between two strip plate structures; a storage battery is placed in the concave surface body of the bearing part; and a bearing frame of the whole vehicle-mounted storage battery is fixed on a cross beam of an engine cabin in a vehicle. The vehicle-mounted storage battery bearing bracket has simple structure, strong bearing capability and larger span, and is applicable to various vehicles.