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 having a melting point of 100°C to 140°C and 15% by weight to 2% by weight of a propylene-based resin having a melting point of 145 °C or higher and lower than 165 °C, provided that a sum total of the propylene-based resin and the propylene-based resin is 100% by weight; (ii) a difference between the melting point of the propylene-based resin and the melting point of the propylene-based resin [(melting point of a2) - (melting point of al)] is 15°C to 25 °C; wherein the propylene-based resin or the propylene-based resin and the propylene-based resin 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 having a melting point of 100°C to 140°C and 15% by weight to 2% by weight of a propylene-based resin having a melting point of 145 °C or higher and lower than 165 °C, provided that a sum total of the propylene-based resin and the propylene-based resin is 100% by weight; (ii) a difference between the melting point of the propylene-based resin and the melting point of the propylene-based resin [(melting point of a2) - (melting point of al)] is 15°C to 25 °C; wherein the propylene-based resin or the propylene-based resin and the propylene-based resin 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.