The utility model relates to an electric assisted bicycle for a disable person. The electric assisted bicycle for the disable person comprises a three-wheel frame, a shaking power mechanism and an assistant power mechanism. The shaking power mechanism comprises an operating crank mechanism and a power transfer mechanism. The operating crank mechanism is used for users to swing to generate a rotary force. The rotary force drives a front wheel to rotate through the power transfer mechanism. The assistant power mechanism comprises a sensing module, a control module, an electric mechanism and a power supply unit. The sensing module senses the operating state of the shaking power mechanism to generate a sensing signal. The control module generates a driving signal according to the sensing signal to control operation of the electric mechanism so that the electric mechanism can drive the front wheel to rotate. According to the electric assisted bicycle for the disable person provided by the utility model, the electric mechanism is controlled to rotate through sensing the operating state of the shaking power mechanism, so that the electric mechanism generates an assistant power to drive the assisted bicycle for the disable person to operate, therefore, the physical load can be greatly alleviated.