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 (SUS) 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 (SUS) material. <EOS>