The invention discloses an intelligent wearable device and a method for estimating exercise recovery time based on the device. The intelligent wearable device comprises a watch strap and a watch head,the watch strap comprises a common section and an adjustable section, and the watch head comprises a display screen, a button, a main controller, an acceleration sensor, a heart rate detection module, a GPS positioning module and a battery, wherein the battery is electrically connected with the main controller, the acceleration sensor is in signal connection to the main controller, and the main controller is connected with the heart rate detection module, the GPS positioning module and the display screen. According to the intelligent wearable device, by monitoring the speed, the distance andthe heart rate value in the exercise process, the time for aerobic exercise and the time for anaerobic exercise are calculated, and finally, the time for fatigue recovery is estimated. In the recoveryprocess, by monitoring the basal heart rate, the sleep condition and other data, the recovery effect is judged, and according to the recovery effect, the recovery time is shortened or prolonged. By estimating the time for exercise fatigue recovery, a user can reasonably manage training content and time, and sport injury caused by accumulation of exercise fatigue is avoided.