To provide a lifestyle improvement supporting apparatus and a lifestyle improvement supporting method which can offer appropriate advice corresponding to a performance state of lifestyle improvement carried out by a subject. An objective information receiving unit (120) receives objective information (an average urinary sodium level of the current month) relating to a subject, from the subject (S301), and calculates a difference (=A) in the average values between the current month and the previous month. A test result receiving unit (110) receives a test value (a blood pressure value) of the subject from the subject (S302), and calculates a difference (=B) in the blood pressure value over one month. A test result judgment unit 130 evaluates a lifestyle improvement activity on the basis of the calculated values A and B. The lifestyle improvement activity is evaluated according to combinations (four patterns) of the differences A and B (S303), and then advice corresponding to the evaluation result is presented (S304 to S320).