A coasting energy recovery control system of a vehicle is provided. The system includes: an electric motor; a power battery; a battery manager connected with the power battery, and configured to obtain a maximum charging power of the power battery; and a motor controller connected with the electric motor, and configured to obtain maximum energy recovery torque values of the motor controller and the electric motor, to convert the maximum charging power of the power battery into a maximum energy recovery torque value of the power battery, to determine a minimum of the maximum energy recovery torque values as a first energy recovery torque value, to obtain a second energy recovery torque value, and to determine a final energy recovery torque value of the electric motor as a minimum of the first and second energy recovery torque values, such that the electric motor controls the vehicle to perform the coasting energy recovery operation according to the final energy recovery torque value.