Optical pickup apparatus and information recording and reproducing apparatus

The present invention provides an apparatus and correctly the optical information recording and reproducing a recording medium record reproducing apparatus of the optical pickup. When the first light-receiving portion (24) corresponding to the first laser focus state is adjusted sensor lens (19) relative position of the first light receiving portion (24) to cause a first FES becomes zero, and defining a light receiving area of ​​the second light receiving portion (25), that the second FES output from the second light-receiving portion is zero, the light reflected by the medium second light receiving portion and a second laser beam corresponding to the optical recording medium. Thus, when the first FES (24) output from the first light receiving portion is zero, it can be made from the second light receiving portion (25) of the second output FES is zero. Thereby an excitation wavelength and the other oscillation wavelength of the excitation wavelength in a focal shift can be prevented.