The present invention belongs to the atmospheric monitoring technology field, and especially relates to a solar tracking system for occultation flux remote measurement. The system comprises a spectrometer and an optical module, the optical module comprises a first reflector and a second reflector, the sunlight is changed to vertical light beam through reflection of the first reflector and the second reflector in order, the light interception area of the second reflector is provided with a light through hole, the sunlight passing through the light through hole forms a branch optical path, and the branch optical path is projected on a PSD position sensor through the reflection and/or refraction of a downstream optical module. The solar tracking system for occultation flux remote measurement employs the PSD position sensor to detect the angle of the sunlight, regulate the sunlight receiving angle of an occultation flux remote measurement device in real time according to the detection data to ensure that the luminous flux of the spectrometer is always kept at the maximum value, and the solar tracking system for occultation flux remote measurement is far better than the current device whatever in the response speed or the detection precision.