The industry standard “Technical Specification for Directional Drilling (DZ/T 0054-2014)” was formally implemented in December 2014. This standard is the revised version of “Technical Regulation for Directional Drilling (DZ/T 0054-1993)”. This paper mainly introduces the main technical contents and technical characteristics of the revised specification after absorbing the latest practical results of directional drilling technology, as well as promotion and application of the specification in “the Belt and Road” countries after its publication. It is recommended that relevant practitioners should understand and master the clauses of the new standard, and implement them so as to promote the standardization of directional drilling.