Abstract: In this paper, a method to tap crude oil pipeline by means of abrasive jet technology was proposed in order to realize the process connection between the tank pipeline of Made initial station and the reinjection pipeline of the newly built oil spill pool in China-Myanmar Crude Oil Pipeline(Myanmar section). The clamping-nozzle device was developed on the basis of the abrasive jet technology. And then it was applied to completing the tapping of DN 350 in the crude oil pipeline with 914 mm diameter at a time. The field application results show that the abrasive jet technology, as a kind of cold cutting technology, has the advantages of safety and environmental protection and it can prevent the flammable and explosive residues in oil/gas pipeline from leading to risks of burning and explosion. In addition, the concentration of combustible media in oil/gas pipeline doesn't have to be taken into consideration, and the continuous detection of combustible gas concentration and the nitrogen injection protection are skipped, so the tapping efficiency is improved effectively. To sum up, the field application of abrasive jet is conducive to its further popularization in the field of oil/gas field surface engineering.