The utility model discloses a binary-channel visible light intensity meter calibration experimental apparatus, comprising a light source device, a light path adjusting device, and a measurement device. The light source device comprises a light source and a light source adjusting device. The light path adjusting device comprises a beam splitter mirror and a completely reflecting mirror. The measurement device comprises a measurement and control device, a calibration light intensity meter, and a light intensity meter to be calibrated. The light source adjusting device is connected with the light source. Emergent light rays emitted by the light source is divided into two equal-intensity light beams through the beam splitter mirror, wherein one beam enters into the calibration light intensity meter while the other beam enters into the light intensity meter to be calibrated through the completely reflecting mirror. The calibration light intensity meter and the light intensity meter to be calibrated are both connected to the measurement and control device, and the light intensity meter to be calibrated receives instruction feedbacks from the measurement and control device. The apparatus is simple in structure and convenient for measurement. The emergent light rays emitted by utilizing the same light source are divided into the two synchronous light beams, and simultaneously the calibration light intensity meter and the light intensity meter to be calibrated are detected in a synchronous manner, thereby realizing the objective of calibration, and reducing the calibration difficulty while increasing the calibration precision at the same time.