Abstract: Technical Specification for the Collection of Drinking Water Samples (DB11/T 1702-2019) refined sampling of drinking water on the basis of the Standard Examination Methods for Drinking Water (GB/T 5750-2006). The standard specifies the sample preparation and technical requirements for the collection of drinking water samples, and it is suitable for the collection of various drinking water samples. In order to understand and use the standard better for users, an interpretation was made in this paper with respect to the background and significance of the standard, collection technology in china and globally, principles for standard development, rationale of main technical contents of the standard, instructions for standard use, and application of the standard and its effects.