Floor-type pedestrian traffic light device is composed of an expression board, a control unit, and an option board to provide pedestrian signal information on the floor to clearly define the boundary line between the road and the footpath. It prevents pedestrian accidents at crosswalk and creates safe walking environment for childeren and senior citizens. It also improves convenience, safety and satisfaction, and establish safe walking culture, it enhances signal compliance and serves as a psychological barrier to trespassing.