The invention discloses a technology for extracting chlorophyll from spirulina. The technology for extracting the chlorophyll from the spirulina comprises the steps of raw material pre-treatment, soaking, enzymolysis, filtering and drying. According to the technology for extracting the chlorophyll from the spirulina, when the chlorophyll is extracted from the spirulina, modes of soaking, enzymolysis, microwaves and ultrasonic treatment are adopted for obtaining the chlorophyll, and use of organic solvents is avoided, so that the food safety of the chlorophyll is improved. Enzymes of protease,cellulase, pectinase, lignase, amylase, esterase and the like are adopted for conducting enzymolysis treatment on the spirulina, substances other than the chlorophyll in the spirulina are degraded, the chlorophyll in the spirulina is not destructed, thus the chlorophyll contained in the spirulina is extracted as much as possible, and a product does not contain other impurities, so that the yield and the purity of the chlorophyll are improved, the extraction yield of the chlorophyll is higher than 99.5%, and is higher than that of a traditional solvent extraction method by 8.8% or above, and the purity of the chlorophyll is higher than 99.96%.