Abstract: A transaction data processing method includes: determining one or more transaction key values and one or more transaction feature values of a to-be-processed transaction according to transaction information of the to-be-processed transaction; determining a rule union corresponding to the to-be-processed transaction according to the one or more transaction key values, the rule union including a plurality of to-be-matched rules; matching the one or more transaction feature values of the to-be-processed transaction sequentially with the plurality of to-be-matched rules in the rule union to obtain a rule matching result of the to-be-processed transaction; and performing a billing process of the to-be-processed transaction according to the rule matching result.