A lens drive motor, wherein the lens drive motor comprises: a housing, a lens support, a coil and a magnet component, the coil being wrapped around the lens support and being provided in the housing, the magnet component being provided between the housing and the lens support, wherein the magnet component comprises multiple sub-magnets provided in pairs; and two sub-magnets of each pair of the multiple sub-magnets are respectively positioned at two sides of the lens support and are at least corresponding to straight edges of the housing, each of the multiple sub-magnets is of a bent type structure; each of the multiple sub-magnets comprises a main body segment and an extending segment connected sequentially; an included angle is formed between the extending segment and the main body segment; multiple straight edge segments and multiple corner segments connecting the multiple straight edge segments are comprised at an outer periphery of the lens support; the main body segment cover one corresponding straight edge segment of the multiple straight edge segments; and the extending segment stretch out to one of the corner segments, characterized in that a portion, corresponding to the magnet component, of a peripheral wall of the housing is made of a first material, and other portions of the housing are made of a second material; and a magnetic conductivity of the second material is smaller than a magnetic conductivity of the first material, a thickness H1 of a corner portion of a peripheral wall of the housing is greater than a thickness H2 of other portions of the peripheral wall of the housing, the first material and the second material are fixed by welding, the first material is a Steel Plate Cold rolled Commercial (SPCC) material, the second material is a Steel Use Stainless material. the magnet component comprises multiple sub-magnets provided in pairs; and two sub-magnets of each pair of the multiple sub-magnets are respectively positioned at two sides of the lens support and are at least corresponding to straight edges of the housing, each of the multiple sub-magnets is of a bent type structure; each of the multiple sub-magnets comprises a main body segment and an extending segment connected sequentially; an included angle is formed between the extending segment and the main body segment; multiple straight edge segments and multiple corner segments connecting the multiple straight edge segments are comprised at an outer periphery of the lens support; the main body segment cover one corresponding straight edge segment of the multiple straight edge segments; and the extending segment stretch out to one of the corner segments, characterized in that a portion, corresponding to the magnet component, of a peripheral wall of the housing is made of a first material, and other portions of the housing are made of a second material; and a magnetic conductivity of the second material is smaller than a magnetic conductivity of the first material, a thickness H1 of a corner portion of a peripheral wall of the housing is greater than a thickness H2 of other portions of the peripheral wall of the housing, the first material and the second material are fixed by welding, the first material is a Steel Plate Cold rolled Commercial (SPCC) material, the second material is a Steel Use Stainless material.