The present invention addresses a hygienic diaper changer. The diaper changer, object of the present invention is constituted by a bag that has an opening (1) at the top of the bag, through which the baby is inserted feet first to the waist and has lateral access openings (2) through which are inserted the hands of the caregiver, allowing in this manner the easy changing of the diaper, in addition there is a central opening (3) to facilitate the complete process of changing the diaper without soiling the surface where the activity is taking place and preventing the propagation of odors. When placed on the child, the diaper changer seals, preventing the passing of odors or fluids to the exterior.