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Based on the principles of environmental sensitivity to and compliance with the meteorological conditions, presented were seven design methods of the environmental meteorological indexes related with various aspects such as human being living conditions, public service, recreation, travel, agriculture, engineering, medical treatments and sanitation, etc. These methods include Regression Statistics, Factor Weighting, Experience Mode, History Data Searching, Dynamics Simulation, Extension Methods and Concept Model. Based on these methods, eight categories and 73 kinds of indexes were developed. Considering the results from a large population customer survey along with other methods such as field observation and experimental analysis, the technical details of various design methods are discussed with several environmental meteorological indexes as examples. These methods are simple, practical, and easy to be put to operational use.