Only one enzyme activation decomposer is added. Straw can be made into straw feed rich in nutrients at room temperature after two hours of biochemical reaction. Experts believe that this new technology has not only solved the problem of increasing the conversion rate of straw feed in China, but also broke through for the first time the difficulty that food-eating animals can feed straw. The application of this straw decomposition technology can reduce the cost of farming by about 20% to 30%. This new technology utilizes the synergistic action of biological compound enzymes and carriers to decompose straw macromolecules into small molecules until they are degraded to amino acids and glucose, which are then directly absorbed by animals. In this process, not only cellulose, cell walls, and intercellular substances are decomposed into nutrients, but also cell walls are destroyed, intracellular nutrients are released, and finally, the conversion rate of straw feed is greatly improved. Not only herbivores such as cattle and sheep can be fully digested, but also food animals such as pigs and chickens can be fully digested.