A voice coil motor, comprising: a base; a case comprising an upper plate and a lateral plate extending from the upper plate; a bobbin disposed in the case and configured to move in a direction of an optical axis; a housing disposed between the case and the bobbin; a first driving unit disposed on the bobbin; a second driving unit disposed in the case and disposed at a position corresponding to the first driving unit; and an elastic member comprising an outer elastic unit disposed on the housing, an inner elastic unit coupled with the bobbin, and an elastic connection unit connecting the outer elastic unit and the inner elastic unit, wherein the first driving unit comprises any one of a coil and a magnet and the second driving unit comprises the other of the coil and the magnet, wherein the bobbin is distanced from the base by the elastic member at an initial position where no driving signal is applied to the coil, and wherein the bobbin is configured to move in a first direction distancing from the base from the initial position when an ascending signal for ascending the bobbin is applied to the coil and the bobbin is configured to move in a second direction approaching the base from the initial position when a descending signal for descending the bobbin is applied to the coil, characterized in that the housing comprises an interference prevention unit, the interference prevention unit forms a space such that the elastic connection unit is configured to move to a position lower than the initial position, and the interference prevention unit is configured to prevent the elastic connection unit from contacting the housing when the bobbin moves in the second direction approaching the base from the initial position. a base; a case comprising an upper plate and a lateral plate extending from the upper plate; a bobbin disposed in the case and configured to move in a direction of an optical axis; a housing disposed between the case and the bobbin; a first driving unit disposed on the bobbin; a second driving unit disposed in the case and disposed at a position corresponding to the first driving unit; and an elastic member comprising an outer elastic unit disposed on the housing, an inner elastic unit coupled with the bobbin, and an elastic connection unit connecting the outer elastic unit and the inner elastic unit, wherein the first driving unit comprises any one of a coil and a magnet and the second driving unit comprises the other of the coil and the magnet, wherein the bobbin is distanced from the base by the elastic member at an initial position where no driving signal is applied to the coil, and wherein the bobbin is configured to move in a first direction distancing from the base from the initial position when an ascending signal for ascending the bobbin is applied to the coil and the bobbin is configured to move in a second direction approaching the base from the initial position when a descending signal for descending the bobbin is applied to the coil, characterized in that the housing comprises an interference prevention unit, the interference prevention unit forms a space such that the elastic connection unit is configured to move to a position lower than the initial position, and the interference prevention unit is configured to prevent the elastic connection unit from contacting the housing when the bobbin moves in the second direction approaching the base from the initial position.