Children’s excavator is a kind of electric-hydraulic amusement device, mainly consists of lower chassis, upper chassis, mobile arm, bucket handle, digging bucket, power unit, control unit, four-rotary support, four-rotary motor, hydraulic oil cylinder, electronic auxiliary system,  machine has slower speed and controllable. It normally takes motor as the power to drive  hydraulic pump working, through the control unit to transmit the pressure to each hydraulic oil cylinder, and with the same working principle as the construction machinery excavator. The amusement excavator is mainly applied by the places such as the shopping malls, supermarkets, commercial streets, parks, playgrounds, squares, beaches, tourist attractions, experience pavilions, sightseeing parks, video game city, farms, picking parks and science pavilions. Children or the adults could have the real operation experience, with wide application sites and bright prospects.