The invention relates to the technical field of automobile part structures, in particular to an automobile wading and soaking risk warning device and an automobile with the same. The device includes a rotating shaft horizontally arranged in the Y direction, and a first support and a second support which are arranged on the rotating shaft in a sleeving manner; wherein a first rotating arm and a second rotating arm which extend in the direction perpendicular to the axial direction of the rotating shaft are arranged on the first support and the second support, and the first support and the second support can be rotatably connected to the rotating shaft around the axis of the rotating shaft; a trigger module is arranged between the first rotating arm and the second rotating arm; the triggering module is triggered to give an alarm by forming a passage through water between the two rotating arms when the end, away from the first support, of the first rotating arm and the end, away from the second support, of the second rotating arm are soaked in water at the same time. The rotating shaft is connected with a control module for controlling the rotating angles of the first support and the second support around the axis of the rotating shaft. The warning device is simple in structure and accurate in detection, false triggering can be effectively avoided, and the warning device can be applied to various scene modes.