Abstract: Here is a summary of the test and application of CDR₁₀₂ friction-reducing agent prodaced in KANOK corporation, U.S.A. in the Xiong-Yao section of Tie-Da pipclcine and An-Shan pump station, which covers: the physical properties and friction-reducing mechanism; the impact of the medium's flow status, viscosity, temperature, wax content, water content upon CDR₁₀₂ friction-reducing agent, and its change in the case of the meduim carried being sheared and throttled. Also mentioned in the article are section of the points at which to inject the agent, the injection process, ways, and equipment; the test procedures and methods, etc. In the end, the article makes an analysis and explanations selectively of such aspects as the test parameters, the frictionreducing effect (with friction reduction, the data to show the effect of throughput increase and some curves concerned), and the calculation of friction reduction and that of the increased throughput. In addition, a comment is made upon the production injection of such agent in An Shan pump station: e.i. though the friction-reducing effect of such agent is comparatively good, it is too expensive. For this reason, its advantages are obvious only in tackling some bottle neck problems that have to overcomed in a short time. The fact that most of our oil belong in the high pour point and high viscous crude oil necessitate the research. into and technology exploration of chemical additives.