Driving Assistance Method and Driving Assistance Device

A driving assistance method is for an automated driving vehicle that is capable of switching between manual driving by a driver and automated driving, learns a driving characteristic of the driver during the manual driving, and reflects a learning result to a driving characteristic under control of the automated driving, and the driving assistance method includes: detecting a driving characteristic of an area in which the automated driving vehicle is traveling; and adjusting the learning result according to the detected driving characteristic of the area and executing the control of the automated driving based on the adjusted learning result.