Lower structure of vehicle

A lower structure of vehicle, comprising:

• a floor base plate, comprising a floor beam disposed on an upper surface, the floor beam extending in a vehicle width direction;
• a battery component, disposed at a rear of the floor beam in a front and rear direction of the vehicle;
• and
• a battery covering portion, covering above the battery component, the battery covering portion comprising a plurality of connection portions connected to the floor beam, wherein
• the battery covering portion is formed of a steel material, and
• the connection portions are disposed staggered from each other in height positions in an upward and downward direction of the vehicle, wherein
• the connection portions comprise an outer connection portion disposed close to an outer side in the vehicle width direction, an inner connection portion disposed close to an inner side in the vehicle width direction, and a central connection portion disposed between the outer connection portion and the inner connection portion, wherein
• the central connection portion is disposed higher in the upward and downward direction of the vehicle than the outer connection portion and the inner connection portion.