The invention discloses a rule-based satellite telemetry data analysis system. The system comprises a rule editing system and an online analysis subsystem, wherein the rule editing system serves as aninput port of diagnosis rules to provide a graphic rule editing mode and a script rule editing mode and write association judgment diagnosis rules, condition judgment diagnosis rules, mode judgment diagnosis rules, mathematic and logic operation diagnosis rules and other diagnosis rules for one-dimensional telemetry and multi-dimensional telemetry through associated satellite telemetry parameters, and the rule editing system is provided with a rule base; and the online analysis subsystem reads the rules compiled by a user from the rule base and loads the rules into an analysis and judgment process, the analysis process performs analysis and diagnosis on real-time telemetry data according to the rules by receiving telemetry physical quantity data from the Internet, the judgment result is written into a result database, and the judgment result is sent out through the Internet. Through the system, a satellite test data judgment rule establishing tool is provided, and therefore the user can establish and modify the rules conveniently and quickly.