A seating-type gait rehabilitation robot comprising: a weight supporter comprising an elevator connected to a vertical supporter and moving up and down; and a pair of walk actuators disposed at opposite sides with respect to the weight supporter for gait training of a trainee, each of the pair of walk actuators comprising a footrest, a footrest supporter to which the footrest is connected, and a footrest actuator configured to actuate the footrest and the footrest supporter, wherein the footrest actuator comprises a supporter rotation actuator configured to perform rotating movement of the footrest supporter, a footrest rotation actuator configured to perform rotational movement of the footrest, and a translatory actuator, the translatory actuator comprising a transfer mechanism to which the footrest supporter is connected so that the footrest actuator can make translatory movement of the footrest supporter, and a transfer actuator configured to apply an actuating force to the transfer mechanism, and the seating-type gait rehabilitation robot further comprises an actuator hanging member configured to hang and support the transfer mechanism, wherein the hanging member comprises a lateral wall, wherein the transfer mechanism comprises a plurality of guide rails coupled to an inner side of the lateral wall as spaced apart up and down from each other and installed as hung in a translatory direction, a slider connected to the plurality of guide rails and configured to move by the actuating force applied from the transfer actuator, and a transfer base on which the slider and the footrest supporter are installed, characterized in that the seating-type gait rehabilitation robot further comprises a seat connected to the elevator; and the transfer base comprises a vertical base to which the slider is coupled, and a horizontal base (311c") disposed perpendicularly to a lower portion of the vertical base, the footrest supporter is rotatably coupled to the supporter rotation actuator installed on the horizontal base (311c"), and wherein the footrest supporter comprises a first end connected to the transfer mechanism and a second end to be mounted with the footrest, and the first end of the footrest supporter coupled with the transfer mechanism is placed inside an entry space so that the footrest is disposed toward an entrance of the entry space formed between the actuator hanging members. a weight supporter comprising an elevator connected to a vertical supporter and moving up and down; and a pair of walk actuators disposed at opposite sides with respect to the weight supporter for gait training of a trainee, each of the pair of walk actuators comprising a footrest, a footrest supporter to which the footrest is connected, and a footrest actuator configured to actuate the footrest and the footrest supporter, wherein the footrest actuator comprises a supporter rotation actuator configured to perform rotating movement of the footrest supporter, a footrest rotation actuator configured to perform rotational movement of the footrest, and a translatory actuator, the translatory actuator comprising a transfer mechanism to which the footrest supporter is connected so that the footrest actuator can make translatory movement of the footrest supporter, and a transfer actuator configured to apply an actuating force to the transfer mechanism, and the seating-type gait rehabilitation robot further comprises an actuator hanging member configured to hang and support the transfer mechanism, wherein the hanging member comprises a lateral wall, wherein the transfer mechanism comprises a plurality of guide rails coupled to an inner side of the lateral wall as spaced apart up and down from each other and installed as hung in a translatory direction, a slider connected to the plurality of guide rails and configured to move by the actuating force applied from the transfer actuator, and a transfer base on which the slider and the footrest supporter are installed, characterized in that the seating-type gait rehabilitation robot further comprises a seat connected to the elevator; and the transfer base comprises a vertical base to which the slider is coupled, and a horizontal base (311c") disposed perpendicularly to a lower portion of the vertical base, the footrest supporter is rotatably coupled to the supporter rotation actuator installed on the horizontal base (311c"), and wherein the footrest supporter comprises a first end connected to the transfer mechanism and a second end to be mounted with the footrest, and the first end of the footrest supporter coupled with the transfer mechanism is placed inside an entry space so that the footrest is disposed toward an entrance of the entry space formed between the actuator hanging members.