A method for controlling torque reduction of a hybrid electric vehicle including a motor and an engine includes determining whether a demand torque of a traction control system (TCS) is generated. When the demand torque of the TCS is generated, the demand torque of the TCS and a motor output torque is compared. Based on a result of the comparison, torque reduction is performed by using only one of a motor torque. Also disclosed are an apparatus configured to perform the method for controlling torque reduction and a computer readable storage medium causing performance of torque reduction through the use of only one of a motor torque and an engine torque.