The background and urgency of giving meteorological equipment a unique code are discussed, and the principles of coding system design are presented. The classification of meteorological equipment and the details of the coding scheme are proposed. Examples are given for how to generate the codes for certain equipment and how to verify the correctness and effectiveness of the approach. The coding design has the feature of unique identification and can embody the characteristics of meteorological service. The coding methods such as implication coding, concatenation coding, level coding, and ascending coding have been appropriately putting into use in the coding design. More importantly, the static coding and dynamic coding are distinguished; the static coding normalizes the meteorological equipment coding regulation, and the dynamic coding achieves the informationized management of meteorological equipment. The practice in several provinces has proved that it can improve the efficiency of meteorological equipment management.