An automotive alternator voltage control apparatus (16, 16A, 16B) comprising: an annular slinger; a brush holder that is disposed so as to extend radially from an outer peripheral wall surface of said slinger and that is formed such that a brush insertion aperture is open at an inner peripheral wall surface of said slinger; positive electrode and negative electrode brushes that are inserted into said brush insertion aperture so as to line up in an axial direction of said slinger and be movable in a radial direction of said slinger; a voltage regulator (20, 20A, 20B); and a connector for input and output from and to an external device, wherein said slinger, said brush holder, and said connector are constituted by a resin body (31, 31A, 31B) that is formed integrally using an insulating resin; characterized in that the voltage regulator has an integrated circuit (21, 21A) on which a circuit is formed that controls an automotive alternator output voltage; the automotive alternator voltage control apparatus further comprises a surge absorber that absorbs surges arising due to output voltage control by said voltage regulator; said voltage regulator (20, 20A, 20B), said surge absorber, and said connector are disposed radially outside said slinger alongside said brush holder on a first circumferential side of said brush holder; a voltage regulator housing aperture and a surge absorber housing aperture are formed so as to line up in said radial direction on a portion of said resin body between said slinger and said connector; and said voltage regulator and said surge absorber housed in said voltage regulator housing aperture and said surge absorber housing aperture and said connector are disposed so as to line up in a single column in said radial direction. an annular slinger; a brush holder that is disposed so as to extend radially from an outer peripheral wall surface of said slinger and that is formed such that a brush insertion aperture is open at an inner peripheral wall surface of said slinger; positive electrode and negative electrode brushes that are inserted into said brush insertion aperture so as to line up in an axial direction of said slinger and be movable in a radial direction of said slinger; a voltage regulator (20, 20A, 20B); and a connector for input and output from and to an external device, wherein said slinger, said brush holder, and said connector are constituted by a resin body (31, 31A, 31B) that is formed integrally using an insulating resin; characterized in that the voltage regulator has an integrated circuit (21, 21A) on which a circuit is formed that controls an automotive alternator output voltage; the automotive alternator voltage control apparatus further comprises a surge absorber that absorbs surges arising due to output voltage control by said voltage regulator; said voltage regulator (20, 20A, 20B), said surge absorber, and said connector are disposed radially outside said slinger alongside said brush holder on a first circumferential side of said brush holder; a voltage regulator housing aperture and a surge absorber housing aperture are formed so as to line up in said radial direction on a portion of said resin body between said slinger and said connector; and said voltage regulator and said surge absorber housed in said voltage regulator housing aperture and said surge absorber housing aperture and said connector are disposed so as to line up in a single column in said radial direction.