Vehicle side air curtain and vehicle

The vehicle side air curtain comprises a first side air curtain structure which is located between an A column decoration plate and a vehicle body and fixedly installed on the vehicle body, the first side air curtain structure is provided with a first seam extending downwards from the top of the A column decoration plate, and a second seam extending downwards from the top of the A column decoration plate. The first side air curtain structure is provided with a first seam, the first seam divides the first side air curtain structure into a first air bag close to an A-column decoration plate and a second air bag far away from the A-column decoration plate, and the first seam has a preset length, so that the first air bag close to the A-column decoration plate has a preset thickness in the width direction of a vehicle body when being inflated and unfolded. The side air curtain can be ensured to be normally unfolded in side collision or small offset collision accidents, and a driver and passengers are well protect