Abstract: Disclosed are: an all solid state secondary battery wherein a solid electrolyte layer can be formed thin and the internal resistance is low; a method for manufacturing an all solid state secondary battery, by which an extremely thin solid electrolyte layer can be formed; and a method for manufacturing an all solid state secondary battery, by which application unevenness of a slurry composition for a solid electrolyte layer is reduced and the internal resistance can be lowered. Specifically disclosed is an all solid state secondary battery which comprises a positive electrode that has a positive electrode active material layer, a negative electrode that has a negative electrode active material layer, and a solid electrolyte layer that is arranged between the positive and negative electrode active material layers.