There is provided a polarized plastic lens for spectacles configured to be thin having almost the same thickness as the thickness of a normal plastic lens for spectacles, and a method for manufacturing the polarized plastic lens for spectacles, the plastic lens including a first lens base material having an object-side surface; a second lens base material having an eyeball-side surface; and a polarized film provided between the first lens base material and the second lens base material so that a minimum value of a distance between the polarized film and the object-side surface is 0.3 mm or more and 0.7 mm or less.