A handcart (100) is provided with: a body portion (110) a main wheel (111) a support portion (112) an auxiliary wheel (113) a support column portion (117) a seat plate (51) a fixing portion (52) a fixing portion (57) an inclination angle sensor (20) and a gyro sensor (24). One end of the body portion (110) is supported rotatably in a pitch direction with respect to a pair of main wheels (111). One end of the support column portion (117) on the main wheel (111) side is supported rotatably in a pitch direction with respect to the body portion (110). To the other end of the support column portion (117) on the opposite side from the main wheels (111), a grip portion (116) is mounted. One end of the seat plate (51) is supported rotatably in a pitch direction with respect to the support column portion (117). A control portion (21) has a first mode for implementing inverted pendulum control, and a second mode for stopping the inverted pendulum control to stop rotation of the main wheels (111).
