The bio-compressed fuel at room temperature curing (CZSN) technology is a high-density fuel rod or granular material that compresses straw, weeds, shrub branches, and even peels of fruit husks into high-density fuel rods with a calorific value of 2850 to 4500 kcal at room temperature. fuel. Bio-compressed fuel is a kind of green energy which is environmentally friendly, economical and safe. It is widely used abroad, especially in European countries. However, there are still problems of inconvenient storage and transportation and excessively high compression costs. Its utilization technology is mainly thermoforming technology. Different from foreign high-temperature and high-pressure thermoforming technology, CZSN technology adopts fiber milling and lap joint technology, and can compress the crushed biomass material into high-density molded fuel at room temperature, and its energy consumption is reduced by 50% compared with similar foreign products. The volume is reduced by 70%, and the overall production cost is reduced by more than 60%. The processing cost of compressed ton fuel is only 100 yuan/ton, and the market price is 385 yuan to be profitable. The CZSN molding machine uses only one machine, which can be large or small, and is very easy to move and operate. It can establish processing plants of various sizes in the countryside, and can also be used together with the combine harvester to directly compress the raw materials into solid particles with the original volume of 1/10. At the same time, the compressed product storage and transportation are very convenient, the combustion performance is close to coal, the combustion efficiency can reach 90%, 5 times that of traditional biomass fuel, and the use cost is lower than that of gas and electricity. Biomass energy such as straw and firewood has always played an important role in China's rural energy consumption, with an annual consumption of more than 250 million tons of standard coal. However, traditional direct combustion is still the main mode of utilization of biomass energy and its combustion efficiency is low. This technology provides the potential for clean and efficient large-scale application of biomass in rural areas of China, and provides technical support for improving the energy conditions in rural areas.