The present invention relates to an all-solid secondary battery with a sufficiently high discharge capacity per unit volume, while suppressing an increase in internal resistance. An all-solid secondary battery (1) has first electrode layers (111a, 112a), and second electrode layers (131a~133a) laminated on both sides of the first electrode layer (111a, 112a) with solid electrolyte layers (12) placed in between, wherein at least one first opening (141, 142) is provided which penetrates the first electrode layer (111a, 112a) and the solid electrolyte layers (12) adjacent to the first electrode layer (111a, 112a), and the second electrode layers (131a~133a) present on both sides of the first electrode layer (111a, 112a) are in contact with each other on the inside of the first opening (141, 142).