A silicon secondary battery charged and discharged using silicon ions, the silicon secondary battery comprising: a first silicon multilayer thin film part in which a plurality of silicon positive electrode thin film layers each formed of a first silicon compound, which generates silicon cations when the silicon secondary battery is charged and generates silicon anions when the silicon secondary battery is discharged, are stacked, wherein the first silicon compound comprises silicon carbide; a second silicon multilayer thin film part in which a plurality of silicon negative electrode thin film layers each formed of a second silicon compound, which generates silicon anions when the silicon secondary battery is charged and generates silicon cations when the silicon secondary battery is discharged, are stacked, wherein the second silicon compound comprises silicon nitride; and a solid electrolyte layer located between the first silicon multilayer thin film part and the second silicon multilayer thin film part and configured to deliver silicon ions between the first silicon multilayer thin film part and the second silicon multilayer thin film part when the silicon secondary battery is charged and discharged, characterized in that the solid electrolyte layer is comprising at least one of: a first interlayer including the first silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the first silicon multilayer thin film part; and a second interlayer including the second silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the second silicon multilayer thin film part. a first silicon multilayer thin film part in which a plurality of silicon positive electrode thin film layers each formed of a first silicon compound, which generates silicon cations when the silicon secondary battery is charged and generates silicon anions when the silicon secondary battery is discharged, are stacked, wherein the first silicon compound comprises silicon carbide; a second silicon multilayer thin film part in which a plurality of silicon negative electrode thin film layers each formed of a second silicon compound, which generates silicon anions when the silicon secondary battery is charged and generates silicon cations when the silicon secondary battery is discharged, are stacked, wherein the second silicon compound comprises silicon nitride; and a solid electrolyte layer located between the first silicon multilayer thin film part and the second silicon multilayer thin film part and configured to deliver silicon ions between the first silicon multilayer thin film part and the second silicon multilayer thin film part when the silicon secondary battery is charged and discharged, characterized in that the solid electrolyte layer is comprising at least one of: a first interlayer including the first silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the first silicon multilayer thin film part; and a second interlayer including the second silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the second silicon multilayer thin film part. a first interlayer including the first silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the first silicon multilayer thin film part; and a second interlayer including the second silicon compound and a solid electrolyte component is formed between the solid electrolyte layer and the second silicon multilayer thin film part.