The invention provides a tractable electric manned coaster, which is characterized by comprising a wheel carrier assembly, a supporting rod assembly, a buckle assembly, a bracket assembly, a support assembly, a controller assembly, a pedal rod, a connecting rod, a Hall handlebar used for controlling the coaster to advance or retreat and a rotating shaft used for being connected with the support assembly and the pedal rod, wherein the controller assembly is composed of a storage battery and a control board which controls forward rotation and reversal rotation of a motor according signals transmitted by the Hall handlebar. A constructor arrives at a designated place by riding the tractable electric manned coaster so as to carry out spacer installation, the construction quality can be well ensured, and a problem of spacer installation economically when overhead buses of a 1000kV ultrahigh-voltage transformer substation are expanded conductors.