An intelligent light adjusting system and method thereof in a crop growth process are provided. The intelligent light adjusting system includes a parameter measurement device, a parameter processing device, a light source control device and a light source assembly. The parameter measurement device is for measuring a specified parameter in the crop growth process. The parameter processing device is for acquiring a light source parameter of the light source control device, based on the specified parameter. The light source control device is for controlling lighting of the light source assembly, based on the light source parameter.