Outdoor unit of air conditioner

The utility model provides a deterioration of strength that outdoor unit of air conditioner, under the condition of purpose with roof material thin wallization based on lightweight and cost reduction, the material. The utility model discloses an outdoor unit of air conditioner is the outdoor unit of air conditioner who has including the shell of roof (3), and roof (3) are rectangular shape roughly, has a plurality of stepped section (5) that set up on its surface, and a plurality of stepped section (5) form along the outer tip of the minor face side of roof (3) to inboard configuration is leaned on than the outer tip of the long avris of roof (3) in its both ends. 种空调机的室外机，在基于轻量化及成本降低的目的将顶板材质薄壁化的情况下，材料的强度下降。本实用新型的空调机的室外机是具有包括顶板(3)的外壳的空调机的室外机，顶板(3)为大致长方形状，具有在其表面设置的多个阶梯部(5)，多个阶梯部(5)沿着顶板(3)的短边侧的外端部形成，并且其两端比顶板(3)的长边侧的外端部靠内侧配置。