Abstract: A solar tracking system and method are provided. The solar tracking system comprises a photovoltaic cell device, a light sensor module to detect intensity of sunlight, a driving device, a history database, a time generator for generating an accurate present time and a control module. The control module controls the driving device to change an attitude of the photovoltaic cell device to track the sun by referencing sun position data entries in the history database according to the accurate present time and determine whether the intensity of the sunlight exceeds a specific threshold. When the intensity of the sunlight exceeds a specific threshold, the sun is tracked according to the intensity of sunlight and a present sun position is recorded in the history database. On the contrary, a restricted area around a referenced sun position data entry is searched to track the sun.