Lower structure of automobile

Provided is a lower structure for an automobile, the lower structure being configured so that a battery can be mounted on the automobile with a simple structure and so that a load at the time of a collision can be effectively transmitted. A lower structure (100) for an automobile is provided with: a vehicle body floor (110) that constitutes the floor surface of the automobile; and a battery (50), which is a battery unit or a battery module, directly suspended from the vehicle body floor (110) and fixed to the lower side of the vehicle body floor (110). 提供一种汽车的下部构造，该汽车的下部构造能够以简单的结构将电池搭载在汽车上，并能够将碰撞时的载荷有效地传递。汽车的下部构造(100)具备：车体地板(110)，构成汽车的地板面；以及电池(50)，是电池单元或电池模块，从车体地板(110)直接悬挂而固定在车体地板(110)的下侧。