Abstract: The present invention relates to a dual function baby walker, wherein a supporting frame is mounted at the top of a base seat body which is disposed to the bottom of an upper housing seat including a chamber. When the chamber at the upper housing seat is provided with a chair, the baby can be seated on the chair and the legs of the baby can touch the ground to control the moving direction of the walker. When the baby is standing up, the upper housing seat can be detached from the supporting frame, and the bottom of the upper housing seat is mounted with a plurality of wheel bodies. The top of the upper housing seat is provided with a handle to provide holding for the baby while walking. Thus, the baby walker is suitable to be used for baby at different growth stages such that the baby walker can be functioned as a sitting type of baby walker and a pushing type of baby walker as well.