Foldable chair

A foldable chair, comprising:

• a seat plate,
• two X-shaped supporting frames symmetrically arranged on left and right sides of the seat plate, and
• two sliding connecting members symmetrically disposed on the left and right sides of the seat plate, wherein:
• each of the two X-shaped supporting frames comprises a front leg and a rear leg pivotally connected to the front leg,
• the front leg and the rear leg are located outside of the seat plate,
• the rear leg is disposed between a side edge of the seat plate and the front leg in a lateral extending direction of the seat plate,
• an upper end of the rear leg is pivotally connected to a front position of the side edge of the seat plate,
• each of the two sliding connecting members comprises a sliding part slidably connected to the side edge of the seat plate, a fixed part connected to the front leg,
• and a positioning plate connected to and disposed between the sliding part and the fixed part,
• the positioning plate is located on a rear side of the front leg, and
• the rear leg is configured to abut the positioning plate and align with the front leg in a left-and-right direction after the foldable chair is folded.