To obtain a polypropylene-based resin pre-expanded particle that does not cause a rasping frictional noise (squeaky sound) at a high frequency when a friction develops between pre-expanded particles, expanded moldings, or an expanded molding and another plastic product, metal products, etc., and a polypropylene-based resin expanded molding.

The method for producing a polypropylene-based pre-expanded particle comprises feeding a resin particle consisting essentially of a polypropylene-based resin to a pressure-resistant vessel, heating the resin particle to a fixed temperature and releasing the resin particle to an atmosphere under pressure lower than that of the pressure-resistant vessel. The polypropylene-based resin has the flexural rigidity measured based on JIS K7106 of ≥900MPa and ≤1,700MPa. The resin particle comprises ≥0.1 pts.wt. and ≤2.5 pts.wt. of ethylene-bis-stearic acid amide based on 100 pts.wt. of the polypropylene-based resin.

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