A wheelchair having a walker function includes a seat portion, two rails, two armrest units, and a combined unit. The rails are respectively pivoted to the left and right sides of the seating portion. The armrest units can each slide on the rails. When the first coupling rod and the second coupling rod of the coupling unit are respectively rotated to be parallel with the horizontal rods above the armrest units, and the armrest units are in the riding state, the user can ride on the seat portion. Then, when the first coupling rod and the second coupling rod of the coupling unit are respectively rotated inwardly to be perpendicular to the horizontal rods above the armrest units, the first coupling rod can be coupled to the sleeve by the sleeve of the unit The second bonding rods are joined together. Then the user can operate the armrest units, the combining unit and the rails to rotate forward relative to the accommodating portion, and then move the armrest units and the combining unit forward and downward together until the same The track is disengaged, and thus the armrest unit and the combining unit are combined to form a walker. The user can use the walker by holding the grips of the armrest units with both hands.一種兼具助行器功能的輪椅,包含一乘坐部、二軌道、二扶手單元,及一結合單元。該等軌道分別樞設於該乘坐部之左側及右側。該等扶手單元可分別在該等軌道滑移。當該結合單元的第一結合桿及第二結合桿分別旋轉至與該等扶手單元之上水平桿平行而使該等扶手單元處於乘坐狀態時,使用者可乘坐於該乘坐部。繼而當該結合單元的該第一結合桿及該第二結合桿分別向內旋轉至與該等扶手單元之上水平桿垂直時,可藉由結合單元之套筒將該第一結合桿與該第二結合桿結合在一起。繼而使用者可操作該等扶手單元、該結合單元及該等軌道一起相對於該乘坐部向前旋轉,再使該等扶手單元及該結合單元一起向前且向下滑移,直到與該等軌道脫離,因而該等扶手單元及該結合單元結合成為一助行器。使用者可利用雙手握持該等扶手單元之握把而使用該助行器。