In the invention, a set of bearing and enabling device arranged on a base of a platform is utilized to bear and enable a luminous component to be detected; the bearing and enabling device and a sensing device are driven by a set of moving device to relatively move along the length direction of the corresponding enabled luminous component; and a set of sensing device is enabled to receive luminousstate information of the luminous component in turn within a large range and transmits a sensing signal. Therefore, by referring to the known standard luminous state information and detecting the abnormality of elements of the luminous component, the simple, convenient and fast detection platform for the luminous component with a plurality of luminous elements and a detection method thereof are obtained.