This standard specifies the requirements for dehydration methods, process calculations, equipment selection, and corrosion protection for natural gas dehydration projects in oil and gas field surface construction. This standard applies to the design of new construction, expansion and reconstruction projects of natural gas dehydration equipment. The design of glycol absorption method, adsorption method and low-temperature dehydration method and the selection of main parameters can comply with this standard. In addition to complying with this standard, the natural gas dehydration design should also comply with the current relevant national mandatory standards and specifications.