A lens drive apparatus for use in a small camera module, which displaces a lens holder in a direction of an optical axis and a direction (X, Y) orthogonal to the optical axis, the lens drive apparatus comprising: a drive section that displaces an assembly (24, 26, 28) formed by assembling a lens holder displaceable in the direction of the optical axis together with a focusing coil and a plurality of magnets such that each magnet is disposed on one corresponding lateral side of the lens holder, and a plurality of pairs of planar coils such that each pair is disposed facing and in proximity to a corresponding one magnet of the plurality of magnets, and configured to displace the assembly (24, 26, 28) in the direction (X, Y) orthogonal to the optical axis in collaboration with each other; a plurality of Hall devices such that each Hall device is disposed facing and in proximity to one corresponding magnet and detects a position of said magnet in the direction (X, Y) orthogonal to the optical axis; and a rectangular base that is disposed to be spaced from the assembly (24, 26, 28) in the direction of the optical axis, the plurality of Hall devices being mounted on the side of the rectangular base facing the assembly; wherein the planar coils of each pair of planar coils are disposed at both sides with respect to the central position of one lateral side of the rectangular base such that the coil planes of the planar coils are parallel to the one corresponding magnet and parallel to the optical axis, while each Hall device is disposed at the central position on a corresponding one lateral side of the rectangular base. a drive section that displaces an assembly (24, 26, 28) formed by assembling a lens holder displaceable in the direction of the optical axis together with a focusing coil and a plurality of magnets such that each magnet is disposed on one corresponding lateral side of the lens holder, and a plurality of pairs of planar coils such that each pair is disposed facing and in proximity to a corresponding one magnet of the plurality of magnets, and configured to displace the assembly (24, 26, 28) in the direction (X, Y) orthogonal to the optical axis in collaboration with each other; an assembly (24, 26, 28) formed by assembling a lens holder displaceable in the direction of the optical axis together with a focusing coil and a plurality of magnets such that each magnet is disposed on one corresponding lateral side of the lens holder, and a plurality of pairs of planar coils such that each pair is disposed facing and in proximity to a corresponding one magnet of the plurality of magnets, and configured to displace the assembly (24, 26, 28) in the direction (X, Y) orthogonal to the optical axis in collaboration with each other; a plurality of Hall devices such that each Hall device is disposed facing and in proximity to one corresponding magnet and detects a position of said magnet in the direction (X, Y) orthogonal to the optical axis; and a rectangular base that is disposed to be spaced from the assembly (24, 26, 28) in the direction of the optical axis, the plurality of Hall devices being mounted on the side of the rectangular base facing the assembly; wherein the planar coils of each pair of planar coils are disposed at both sides with respect to the central position of one lateral side of the rectangular base such that the coil planes of the planar coils are parallel to the one corresponding magnet and parallel to the optical axis, while each Hall device is disposed at the central position on a corresponding one lateral side of the rectangular base.