An outdoor device for an air conditioner, the outdoor device comprising: a cabinet (110, 120, 150) including at least one suction panel; a base (200, 300) provided at a lower side of the cabinet; and a compressor (51, 52) and a heat exchanger, each of which are provided on the base, wherein the base includes: a base body (210, 310) on which the compressor (51, 52) is provided; and an edge portion (220, 320) provided along a circumference of the base body (210, 310), characterized in that: the device further comprises a step that extends in an upward direction from the base body toward the edge portion and a support guide provided on the edge portion (220, 320) to increase an area by which the heat exchanger is supported; the base body (210, 310) includes a first seat (215, 315) thereon, configured to protrude in the upward direction to support the compressor (51, 52); and the edge portion (220, 320) includes an edge body (221, 321) and a second seat (225, 325) configured to protrude in the upward direction from the edge body (221, 321) to support the heat exchanger. a cabinet (110, 120, 150) including at least one suction panel; a base (200, 300) provided at a lower side of the cabinet; and a compressor (51, 52) and a heat exchanger, each of which are provided on the base, wherein the base includes: a base body (210, 310) on which the compressor (51, 52) is provided; and an edge portion (220, 320) provided along a circumference of the base body (210, 310), characterized in that: the device further comprises a step that extends in an upward direction from the base body toward the edge portion and a support guide provided on the edge portion (220, 320) to increase an area by which the heat exchanger is supported; the base body (210, 310) includes a first seat (215, 315) thereon, configured to protrude in the upward direction to support the compressor (51, 52); and the edge portion (220, 320) includes an edge body (221, 321) and a second seat (225, 325) configured to protrude in the upward direction from the edge body (221, 321) to support the heat exchanger. a base body (210, 310) on which the compressor (51, 52) is provided; and an edge portion (220, 320) provided along a circumference of the base body (210, 310), characterized in that: the device further comprises a step that extends in an upward direction from the base body toward the edge portion and a support guide provided on the edge portion (220, 320) to increase an area by which the heat exchanger is supported; the base body (210, 310) includes a first seat (215, 315) thereon, configured to protrude in the upward direction to support the compressor (51, 52); and the edge portion (220, 320) includes an edge body (221, 321) and a second seat (225, 325) configured to protrude in the upward direction from the edge body (221, 321) to support the heat exchanger. the device further comprises a step that extends in an upward direction from the base body toward the edge portion and a support guide provided on the edge portion (220, 320) to increase an area by which the heat exchanger is supported; the base body (210, 310) includes a first seat (215, 315) thereon, configured to protrude in the upward direction to support the compressor (51, 52); and the edge portion (220, 320) includes an edge body (221, 321) and a second seat (225, 325) configured to protrude in the upward direction from the edge body (221, 321) to support the heat exchanger.