DMPA (2,2-dimethylolbutyric acid) is one of the excellent environmentally friendly water-based polyurethane materials. It mainly relies on imports. The price of the product is 110,000 to 130,000 yuan/ton. The traditional reactor production process is sensitive to temperature and reactive. It takes a long time, which is not conducive to controlling byproducts and improving product yield. On the basis of deeply research on DMPA and DMBA process technology, Zhongshan Zhian company combined with the complete set of microreactor technology. The comprehensive cost was reduced by 2500-5000 yuan / ton. The product yield was improved, and the production operators were reduced by 10 workers.