Abstract: A tracking error signal generation device is used for an optical pickup device capable of reproducing and/or recording an information signal on a spiral or coaxial signal track of a disk shaped optical record medium of one type among a plurality of optical record media of different types which track pitches are different from each other. The optical pickup device has a light beam irradiation device for irradiating the optical record medium with three light beams; and light detection devices for receiving a reflection light of each light beam. The tracking error signal generation device is provided with: a first operation device for calculating a first tracking error signal according to the three beams method; a second operation device for calculating a second tracking error signal according to a DPP (Differential Push Pull) method; and a selecting device for selecting one of the first tracking error signal and the second tracking error signal on the basis of an instruction from the external.