Polymer impregnated concrete(PIC) which is made from ordinary portland cement concrete(OPC) has many merits as a new concrete composit because it can be reinforced over 300% in the mechanical strengths of concrete and very strongly increased in the durabilities of concrete from freezing-tawing and chemical solution by 4-6% impregnation of polymer in concrete. For the manufacturing of PIC, the drying process of base concrete, the vaccum evacuation process, the impregnation process and the polymerization process of monomer in situ are need. These complicate problems make slow progress to the practical using of PIC in the field. So, in this research to improve the manufacturing process and the mechanical properties of PIC, ultrasonic waves were applied to the PIC during the impregnation process. By applying the ultrasonic waves the impregnated amounts of MMA in concrete is increased about 20 % than that of simple pending method and the physical properties of PIC are increased about 25% than those of simple ponding method.