1. In agriculture: 1. Zhao popularized the laws of Niu Geng and Daitian. According to the Records of Hanshu Shihuozhi, at the end of Emperor Wu of Han Dynasty, Li was chosen as the captain of the search by Zhao, and his method was recorded in The Compendium of Tong Jian. Substitution method is also an ancient farming system improved and popularized by Zhao State-rotation system.

2. Agricultural Books: There are nine kinds of agricultural books recorded in Han Shu Literature and Art Annals: Fan Sheng Zhi Book, Shennong Book and Dongan Book. The book Fan Sheng Zhi summarizes the farming experience in northern China, especially in Guanzhong area, puts forward a set of basic principles of farming, and introduces the method of zoning.

Second, Chinese medicine: 1, medical sage Zhang Zhongjing, whose book Treatise on Febrile Diseases.

2. Shennong Herbal Classic is the earliest extant monograph on traditional Chinese medicine in China.

Third, papermaking.

IV. Astronomical Calendar: 1, taichu calendar. Records of Historical Records and Records of Laws and Calendars in the Later Han Dynasty recorded that "Three Calendars were used in the first year of Tai Chu".

2. Zhang Heng's seismograph and armillary sphere

5. Mathematics: Zhoupian Shu Jing and Jiuzhang Arithmetic in the Eastern Han Dynasty were the most advanced applied mathematics in the world at that time.

6. In iron smelting technology: 1, improvement of shaft furnace ironmaking technology 2, continuous improvement of blast equipment and emergence of hydraulic blast machinery.