Through metadata and XML technology, the establishment of a data dictionary and a general airship telemetry protocol decoding method to improve the scalability of airship telemetry protocol packets is proposed, a metadata-based general airship telemetry protocol data decoding method is established. At the same time, based on the data dictionary technology developed an airship general protocol editing aided design tool, which is convenient for users to maintain and extend the design of different airship telemetry protocol XML files. Finally, the general data analysis method is applied in a certain type of airship telemetry data monitoring software. The experimental results show that this method can meet the general analysis requirements of general airship telemetry data.