The present invention provides thermoplastic olefin elastomer crosslinked expanded beads, having a content of a fraction insoluble in hot xylene of 10 to 40 wt %, and having a crystal structure such that a melting peak inherent in the thermoplastic olefin elastomer (inherent peak) and one or more melting peaks on a higher temperature side than the inherent peak (high temperature peak) appear on a DSC curve obtained by heating the crosslinked expanded beads from 23° C. to 200° C. at a heating rate of 10° C./min, wherein in the DSC curve, a total heat of melting is 40 to 60 J/g, and a ratio of a heat of melting of the high temperature peak to the total heat of melting is 0.1 to 0.6.