The invention discloses a vehicle-mounted air purifier with good shock absorption effect, which comprises a fixing seat, the bottom of the inner wall of the fixing seat is symmetrically and fixedly connected with a support plate, and a connecting plate is arranged inside the fixing seat, and the connecting plate Both sides of the connecting block are fixedly connected with a connecting block, and the side of the connecting block away from the connecting plate is slidingly connected with the support plate, and the front surface of the connecting plate is fixedly connected with a fixing plate. The present invention is provided with a fixed seat, a support plate, a connecting plate, a connecting block, a fixed plate, a bump, a cylindrical iron, an air purifier body, a partition, a first positioning block, a connecting plate, a first spring, a second positioning block, The third positioning block, the limit block, the telescopic rod and the second spring solve the problem that the existing vehicle-mounted air purifier does not have a shock-absorbing effect, and the air purifier body is shock-absorbed, avoiding the use of the air purifier body. Sometimes damage occurs due to vibration, which reduces the economic loss of users.