Abstract: Disclosed is a new escape window frame assembly for facilitating emergency egress from a building by using a window frame having a concealed collapsible escape ladder which is cleared for deployment when a window mounted within the frame is pivoted outwardly for providing an escape portal. The escape window frame assembly comprises a window frame having a conventional prefabricated window assembly hingedly mounted therein such that the window assembly may pivot outwardly from the frame. The frame has an open space under the window assembly wherein a flexible ladder is secured. The ladder, fixedly connected at one end inside the open space, has a normal storage position wherein the ladder is coiled inside the open space and an emergency deployed position wherein the ladder extends from the frame downwardly to an escape staging area outside the building. A shear pin secures the window assembly in a normally closed position.