An electric motor toy transport trailer configured to transport an electric motor toy 21 includes a charger 17 includes a rechargeable main power source 17a and a charging connector 17c connected to the rechargeable main power source 17a via a cord 17b. The rechargeable main power source 17a is housed in the electric motor toy transport trailer body 12 in a manner such that the rechargeable main power source 17a is disposed at a position lower than the upper edge of tires 13. The charging connector 17c is stored in an openable and closable container box 14 provided on the electric motor toy transport trailer body 12.