The invention discloses a method and a system for upgrading a software remote upgrade package of a collection terminal, belonging to the technical field of an electric information collection system. The method of the invention comprises the following steps: according to the software and hardware needed to be upgraded by the acquisition terminal, formulating the version compilation rule of the software upgrade package, and determining the target version information of the software upgrade package; Reading the version information of the software and hardware to be upgraded of the collecting terminal, and matching and comparing the version information of the software and hardware to be upgraded of the collecting terminal with the target version information of the software upgrading package; After the matching comparison is qualified, upgrading the software and hardware version information of the acquisition terminal according to the need of the acquisition terminal to identify the software upgrade package, and upgrading the software and hardware that the acquisition terminal needs to upgrade in batch according to the fuzzy matching mode. The invention makes the collection terminal automatically upgrade to the required version according to a certain rule, the upgrade scheme is flexible and the upgrade efficiency is high, and the safety of the upgrade package is ensured.