The invention relates to a one-key dropping-type mine vehicle device. The one-key dropping-type mine vehicle device comprises a mine vehicle main body device chairlift rod (1), an anti-swinging device (4), a chairlift seat and foot rest lever (5), a dropping control switch (9) and a spring (10), wherein the chairlift seat and foot rest lever (5) penetrates through the anti-swinging device (4), so that a connection hole (3) is opposite to a connection hole (6); then a connection rod (7) on the dropping control switch (9) penetrates through the connection holes (3) and (6) to connect the mine vehicle main body device chairlift rod (1), the anti-swinging device (4) and the chairlift and foot rest lever (5)into a whole body, junctions (2) and (8) are fixed by virtue of screws, and finally the dropping control switch (9) and the mine vehicle main body device chairlift rod (1) are fixed by utilizing a screw to penetrate through the spring; when in normal operation, the spring (10) presses the dropping control switch (9), so that the mine vehicle main body device chairlift rod (1), the anti-swinging device (4) and the chairlift seat and foot rest lever (5) are connected into the whole body; and when people get off a mine vehicle in emergency, the dropping control switch (9) is pressed, so that the connection holes (3) and (6) get out of the control of the connection rod (7), the chairlift seat and foot rest lever (5) is separated from the mine vehicle main body device chairlift rod (1), and people can get off the vehicle safely.