The present disclosure relates to the technical field of lamps, and discloses a non-welded and anti-deformation lamp base and a non-welded and anti-deformation light bulb. The lamp base of the present disclosure is integrally molded with the plastic insulating piece to replace a glass insulating piece of the traditional lamp base. The plastic insulating piece has both an environmental protection effect and an inward sinking deformation prevention effect, so that the quality of the light bulb is effectively improved.