A solar cell module capable of preventing the occurrence of a PID failure in a solar photovoltaic power generation system with a MW capacity, said system being used in a high-temperature high-humidity environment; and a method for manufacturing this solar cell module. A solar cell module which comprises a protection glass material and a sealing material on a light receiving surface side of a substrate, and which also comprises an oxide layer between the substrate and the protection glass material, said oxide layer containing a metal element and silicon. It is preferable that the oxide layer contains at least one metal element selected from the group consisting of magnesium, aluminum, titanium, vanadium, chromium, manganese, zirconium, niobium and molybdenum. It is also preferable that the oxide layer has a refractive index of from 1.5 to 2.3 (inclusive) with respect to incident light having a wavelength of 587 nm.