The steady-state and transient fluorescence spectrometer is mainly used to measure the fluorescent spectrum of various materials. It is suitable for measuring the optical properties of common solid or liquid luminescent materials including nano-fluorescent materials, rare-earth luminescent materials, fluorescent probes, noble metal complexes, etc., with the advantages of high resolution, high efficiency, and high sensitivity. This spectrometer is also equipped with an integrating sphere, which has the function of absolute quantum yield measurement. This facility can be applied to the research of optical devices, optoelectronic devices, material chemistry, environmental analysis, etc. It is an important instrument for the research of luminescent materials.