The invention discloses a pressure filling type cable former. The pressure filling type cable former comprises a cable core wire-placing frame, a wire-combining die, a shaping die, a filling apparatus, a cooling apparatus, a wrapping machine, a traction machine and a wire taking-up machine, wherein guiding rollers and a wire-dividing tray are arranged between the cable core wire-placing frame used for placing the cable core and the wire inlet of the wire-combining die; the wire outlet of the wire-combining die is corresponding to the wire inlet of the shaping die; the filling material inlet of the shaping die is connected with the material outlet of the filling apparatus; the wire outlet of the shaping die is corresponding to the wire inlet of the wrapping machine, and the cooling apparatus is arranged between the wire outlet of the shaping die and the wire inlet of the wrapping machine; the wire outlet of the wrapping machine is corresponding to the inlet of the traction machine; and the outlet of the traction machine is corresponding to the inlet of the wire taking-up machine. The invention also discloses a pressure filling type cable forming process. By replacing the existing twisting-in type filling process, the produced finished cable is more circular and tidier in the cable core, the structure is more stable, and the purpose of continuous production without machine halt is fulfilled.