Expanded propylene resin beads comprising a core layer being in a foamed state and comprising a propylene-based resin composition (a) and a cover layer comprising an olefin-based resin (b), the propylene-based resin composition (a) satisfying the following (i) and (ii), and the olefin-based resin (b) satisfying the following (iii) or (iv): (i) the propylene-based resin composition (a) is a mixture of 85% by weight to 98% by weight of a propylene-based resin (a1) having a melting point of 100°C to 140°C and 15% by weight to 2% by weight of a propylene-based resin (a2) having a melting point of 145 °C or higher and lower than 165 °C, provided that a sum total of the propylene-based resin (a1) and the propylene-based resin (a2) is 100% by weight; (ii) a difference between the melting point of the propylene-based resin (a2) and the melting point of the propylene-based resin (a1) [(melting point of a2) - (melting point of al)] is 15°C to 25 °C; wherein the propylene-based resin (a1) or the propylene-based resin (a1) and the propylene-based resin (a2) are a propylene-based resin obtained through polymerization in the presence of a metallocene-based polymerization catalyst; (iii) the olefin-based resin (b) is a crystalline olefin-based resin having a melting point (TmB) that is lower than a melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the melting point (TmB) [TmA - TmB] being more than 0°C and 80°C or less; and (iv) the olefin-based resin (b) is a non-crystalline olefin-based resin having a softening point (TsB) that is lower than the melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the softening point (TsB) [TmA - TsB] being more than 0°C and 100°C or less, wherein melting points of resins and resin compositions, respectively, are measured by means of heat flux DSC according to JIS K7121 , and softening points of resins are measured by the A50 method of JIS K7208 . (i) the propylene-based resin composition (a) is a mixture of 85% by weight to 98% by weight of a propylene-based resin (a1) having a melting point of 100°C to 140°C and 15% by weight to 2% by weight of a propylene-based resin (a2) having a melting point of 145 °C or higher and lower than 165 °C, provided that a sum total of the propylene-based resin (a1) and the propylene-based resin (a2) is 100% by weight; (ii) a difference between the melting point of the propylene-based resin (a2) and the melting point of the propylene-based resin (a1) [(melting point of a2) - (melting point of al)] is 15°C to 25 °C; wherein the propylene-based resin (a1) or the propylene-based resin (a1) and the propylene-based resin (a2) are a propylene-based resin obtained through polymerization in the presence of a metallocene-based polymerization catalyst; (iii) the olefin-based resin (b) is a crystalline olefin-based resin having a melting point (TmB) that is lower than a melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the melting point (TmB) [TmA - TmB] being more than 0°C and 80°C or less; and (iv) the olefin-based resin (b) is a non-crystalline olefin-based resin having a softening point (TsB) that is lower than the melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the softening point (TsB) [TmA - TsB] being more than 0°C and 100°C or less, wherein melting points of resins and resin compositions, respectively, are measured by means of heat flux DSC according to JIS K7121 , and softening points of resins are measured by the A50 method of JIS K7208 . <EOS>