A method for fabricating a frameless diving includes the following steps. First, providing a lens next, coating an adhesive on an edge of the lens then, forming a first flexible layer made of a silica gel on the edge of the lens thereafter, forming a second flexible layer made of another silica gel on the first flexible layer. The first flexible layer has a plurality of protrusions and may enables the lens covered with the first flexible layer to be spaced apart from a high-temperature mold for a proper distance, so as to prevent the first flexible layer from falling off from the lens due to the high temperature when molding the silica gel. The protrusions are exposed out of the second flexible layer, so as to vary the design and shape of the frameless diving mask abundantly.
