Swimming goggles comprise a left frame body, a right frame body, lenses, protective pads and head strap bases, wherein each of the left and right frame bodies has an inner peripheral face and an outer peripheral face, and the inner peripheral face forms a hook channel therealong; each of the protective pads are attached to the inner peripheral faces and has a face contact portion and a connecting portion, characterized in that a backup ring is disposed between the connecting portion and the hook channel, and has a first peripheral face and a second peripheral face, such that the first peripheral face integrally encompasses the hook channel of the inner peripheral face and also the second peripheral face forms with the connecting portion, thereby, the swimming goggles could be worn comfortably in swimming.