The equipment of measuring fluorescence spectrum in near infrared and quantum yield for singlet molecule oxygen produced by photosensitization is developed. The emission spectra from singlet molecule oxygen in the excited state, ?g, photosensitized by HA in organic solvents are obtained on the equipment. The spectroscopic technology for 1 measuring singlet oxygen fluorescence in near about 1270nm is an advantageous and reliable method for measurement of quantum yield of singlet oxygen sensitized by photosensitizer Hyporcrellin A.