The invention discloses four types of suspension traffic warning signs and six types of sign systems and belongs to the technical field of machine manufacturing. In order to solve the problems that motor vehicles break down during driving and difficulties exist in arrangement of traffic warning signs beyond 150m, the traffic warning signs and systems which comprise balloons, banners, weights, miniature remote control cars, miniature helicopters, small civil rockets, roller skates, sliding plates, scooters and car poles, and the miniature remote control cars, the miniature helicopters, the small civil rockets, the roller skates, the sliding plates, the scooters and the car poles serve as carrying tools and recycling tools. The signs and the systems can be used when the motor vehicles break down during driving and warning signs must be arranged.