Provided is an electric yo-yo toy that is easy to handle even for young people and beginners by distributing electric parts and gear mechanisms to both rotating bodies in a well-balanced manner so that both rotating bodies have substantially the same weight. The electric yo-yo toy (1) is rotatable about a pair of rotating bodies (10, 60), a main shaft (26) provided between the center portions of the pair of rotating bodies (10, 60), and the main shaft (26). And a rotating shaft (122) around which the string member (2) is wound. One rotating body (10) detects the rotation of the driving motor (130), the gear mechanism (140) that transmits the rotation of the driving motor (130) to the rotating shaft (122), and the rotation of the rotating body (10). A detection device (100) is provided. The other rotating body (60) is provided with power supplies (81, 82). Conductive means for electrically connecting the drive motor (130) and detection device (100) of one rotating body (10) and the power sources (81, 82) of the other rotating body (60) to the main shaft (26). (40) is provided.
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