A method for detecting physiological information, adapted to a wearable multi-axis accelerometer for detecting the physiological information, the method comprises obtaining a detecting signal in a sampling time via the multi-axis accelerometer； detecting peaks of the detecting signal in a first searching time interval to obtain a plurality of first peaks； calculating first time intervals between every two adjacent first peaks, and taking maximum of the first time intervals as a second searching time interval； detecting peaks of the detecting signal in the second searching time intervals to obtain a plurality of the second peaks； and obtaining the physiological information from the detecting signal based on the second peaks.
