The invention provides an integrally-formed center-sill-type frame for a new energy vehicle. The integrally-formed center-sill-type frame comprises a center ridge, a front suspension support mountingarea, a rear suspension support mounting area and multiple rectangular frame beams. The enter ridge extends in the length direction of the vehicle; the front suspension support mounting area and the rear suspension support mounting area are arranged on the front and rear portions of the center ridge respectively; the rectangular frame beams are located between the front suspension support mountingarea and the rear suspension support mounting area, the rectangular frame beams and the center ridge are integrally formed, and the rectangular frame beams are used for providing attachment points ofsuspensions of the vehicle. The center-sill-type frame is manufactured through an integrally-formed method, the structure and technology feasibility is provided for adoption of high-strength steel, aluminium alloy, magnesium alloy and non-metal high-polymer materials for the frame, the cross section shape and size precision of all parts in the center-sill-type frame can be precisely controlled, by adopting integral formation, the mounting technology of multiple parts is avoided, and accordingly the material selection diversity, precision and assembly mounting efficiency of the center-sill-type frame are improved.