A gait rehabilitation control system, comprising: an operation device unit for setting gait training mode of a patient and displaying gait state information of the patient; a gait device unit worn on the patient's feet so as to move along with the gait motion of the patient; and a control unit for generating a gait trajectory corresponding to the gait training mode set by the operation device unit and driving the gait device unit according to the gait trajectory; wherein the control unit comprises a gait pattern analysis unit for measuring reaction force between the patient's feet and the gait device unit, and analyzing the gait pattern of the patient with the data of the reaction force; wherein the gait pattern analysis unit comprises a force/torque sensor for measuring the reaction force between the patient's feet and the gait device unit, a reaction force check unit for checking whether the measured reaction force is equal to or greater than a threshold value regarding the reaction force of the gait pattern, and stop the gait device when the reaction force is equal to or greater than the threshold value, a gait period decision unit for deciding whether the gait of the patient is in stance phase in which feet are contacted with the ground, or swing phase in which feet are stay away from the ground, when the reaction force is less than the threshold value, a gait purpose detection unit for detecting a gait purpose of the patient when a weight of the patient is applied in an initial stance phase, and an auxiliary torque provision unit for providing auxiliary gait torque to regulate a strength of gait training when the gait purpose of the patient is detected; wherein the auxiliary torque provision unit provides auxiliary gait torque to increase a gait speed when the gait purpose of the patient is detected. an operation device unit for setting gait training mode of a patient and displaying gait state information of the patient; a gait device unit worn on the patient's feet so as to move along with the gait motion of the patient; and a control unit for generating a gait trajectory corresponding to the gait training mode set by the operation device unit and driving the gait device unit according to the gait trajectory; wherein the control unit comprises a gait pattern analysis unit for measuring reaction force between the patient's feet and the gait device unit, and analyzing the gait pattern of the patient with the data of the reaction force; wherein the gait pattern analysis unit comprises a force/torque sensor for measuring the reaction force between the patient's feet and the gait device unit, a reaction force check unit for checking whether the measured reaction force is equal to or greater than a threshold value regarding the reaction force of the gait pattern, and stop the gait device when the reaction force is equal to or greater than the threshold value, wherein the gait pattern analysis unit comprises a force/torque sensor for measuring the reaction force between the patient's feet and the gait device unit, a reaction force check unit for checking whether the measured reaction force is equal to or greater than a threshold value regarding the reaction force of the gait pattern, and stop the gait device when the reaction force is equal to or greater than the threshold value, a gait period decision unit for deciding whether the gait of the patient is in stance phase in which feet are contacted with the ground, or swing phase in which feet are stay away from the ground, when the reaction force is less than the threshold value, a gait purpose detection unit for detecting a gait purpose of the patient when a weight of the patient is applied in an initial stance phase, and an auxiliary torque provision unit for providing auxiliary gait torque to regulate a strength of gait training when the gait purpose of the patient is detected; wherein the auxiliary torque provision unit provides auxiliary gait torque to increase a gait speed when the gait purpose of the patient is detected.