A lens driving apparatus comprising: a base formed at a center thereof with a first opening; a housing coupled with the base and having a second opening corresponding to the first opening; a yoke installed on the base and including a horizontal plate which has a rectangular shape and has a third opening corresponding to the first opening and vertical plates (135, 137) provided at an outer peripheral portion at each corner of the horizontal plate; a bobbin movably installed in the yoke and coupled with a lens module; a coil fixedly disposed around the bobbin; a magnet fixed to an inner surface of each of the vertical plates (135, 137) of the yoke to face the coil, and a spring (181, 185) including at least one of a first spring coupled to a lower portion of the bobbin and a second spring coupled to an upper portion of the bobbin, wherein the magnets are spaced apart each other, each magnet is disposed between the coil and the yoke, and each magnet has an angular column structure, and each magnet is provided at each corner of the horizontal plate, and wherein the coil has an octagonal structure including eight outer side surfaces, wherein four outer side surfaces of the eight outer side surfaces of the coil face the four magnets such that an area of the four outer side surfaces facing the four magnets is greater than 20% and smaller than 50% of an area of the eight outer side surfaces of the coil, wherein each of the magnets has lateral planes including one plane that faces the coil and three flat planes that face the yoke and do not face the coil, wherein the planes of the coil and the magnet, which face to each other, have the same curvature. a base formed at a center thereof with a first opening; a housing coupled with the base and having a second opening corresponding to the first opening; a yoke installed on the base and including a horizontal plate which has a rectangular shape and has a third opening corresponding to the first opening and vertical plates (135, 137) provided at an outer peripheral portion at each corner of the horizontal plate; a bobbin movably installed in the yoke and coupled with a lens module; a coil fixedly disposed around the bobbin; a magnet fixed to an inner surface of each of the vertical plates (135, 137) of the yoke to face the coil, and a spring (181, 185) including at least one of a first spring coupled to a lower portion of the bobbin and a second spring coupled to an upper portion of the bobbin, wherein the magnets are spaced apart each other, each magnet is disposed between the coil and the yoke, and each magnet has an angular column structure, and each magnet is provided at each corner of the horizontal plate, and wherein the coil has an octagonal structure including eight outer side surfaces, wherein four outer side surfaces of the eight outer side surfaces of the coil face the four magnets such that an area of the four outer side surfaces facing the four magnets is greater than 20% and smaller than 50% of an area of the eight outer side surfaces of the coil, wherein each of the magnets has lateral planes including one plane that faces the coil and three flat planes that face the yoke and do not face the coil, wherein the planes of the coil and the magnet, which face to each other, have the same curvature.