Disclosed is An exercise guide apparatus comprising: a sensing unit configured to obtain a heart rate of a subject； a strength determining unit configured to determine a maximal oxygen uptake of the subject； an exercise intensity measurement unit configured to determine a current exercise intensity of the subject based on the heart rate obtained by the sensing unit； and an exercise guide unit configured to estimate a fat oxidation rate of the subject, determine whether or not fat oxidation of the subject occurs, generate guide information according to a result of the determination of the occurrence of fat oxidation, and display the guide information generated, wherein the fat oxidation rate is estimated based on a ratio of fat being oxidized at the current exercise intensity to the maximal oxygen uptake, and wherein the occurrence of fat oxidation is determined by checking whether or not the fat oxidation rate estimated is greater than a threshold.
