Biochemical analyzer intelligent light source replacement device as well as failure judgment and replacement method

The invention provides a biochemical analyzer intelligent light source replacement device as well as a failure judgment and replacement method. The biochemical analyzer intelligent light source replacement device comprises a controller, a light source replacement device, a light gathering convex lens, a detection cup, as well as a photoelectric detector and a power supply switching controller which are connected with the controller, wherein the light source replacement device comprises a support frame, a light source seat and a drive rod; the light source seat is positioned inside the support frame or mounted on the support frame; an operating light source and a standby light source are arranged on the light source seat; the light source seat is arranged on the drive rod; the controller is connected with a driving motor; the driving motor is connected with the drive rod; the light gathering convex lens, the detection cup and the photoelectric detector are positioned on the front side of the operating light source in sequence; the operating light source and the standby light source are respectively connected with the power supply switching controller; the light source replacement device is formed by combining removable optical fiber and a light source seat fixedly mounted.