An electric wheelbarrow comprises a main body portion (1), a power supply device (2) installed at the main body portion (1), a power device and a control device. The power supply device (2) and the control device are respectively connected to the power device. The main body portion (1) comprises a tray (11), a main body frame (12) bearing the tray (11), and a wheel (13) installed at the main body frame (12). The power device comprises a drive device (3), a transmission device (4) and a brake device (5).