Abstract: The polypropylene (PP)-based compounds with liquid-nitrogen-cryogenic rubber powders (LNCRP) were prepared by melt extrusion, and their mechanical properties and morphologies were investigated. The result indicated that the addition of LNCRP resulted in a decrease in mechanical properties but an increase in notched impact strength. The incorporation of compatibilizer could lead to an improvement of mechanical properties. The notched impact strength and compatibility of the compounds were also improved with the addition of polyolefin thermoplastic elastomer (POE) and EPDM grafted with maleic anhydride. In addition, the impact resistance of the compounds could be further improved by using high-density polyethylene and POE as impact modifiers.