An automatic driving control device changes the degree of automation during an automatic control or the degree of change to the vehicle behavior during the automatic control, on the basis of the peripheral monitoring state of a driver, and on the basis of how easy it is to perform a switching operation for prioritizing manual control over automatic control. Thus, the automatic driving control device makes it possible to ensure the convenience of automatic control, by dynamically changing the degree of automation or the degree of change to the vehicle behavior, without uniformly stopping automatic control of steering and acceleration.