PROBLEM TO BE SOLVED: To provide a safe driving promotion device and a safe driving promotion method that can promote safe driving by accurately identifying how a driver is sitting.SOLUTION: In a safe driving promotion device 20 including a seating pressure sensor 21, an alarm device 22, and a control device 23, on the basis of seating pressure distribution D1 detected by the seating pressure sensor 21, if the control device 23 determines that a driver is not sitting right based on positional relation between a crotch position C1 and a barycenter position G1 of the driver sitting on a driver seat 10, the control device has the alarm device 22 give an alarm.SELECTED DRAWING: Figure 1
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