Abstract: Inductive Resistance Probe (IRP) is a new corrosion-monitoring technique for corrosion rate quantitative evaluation of iron-based metals and alloys in various environments .However, its built-in data processing and analysis offer limited capability to obtain corrosion information.A new Integration Filter Algorithm (IFA) was proposed to process data collected by IRP measurement system.A web-enabled computer software with an excellent graphic user interface（GUI）was developed for easier data processing and sharing among users and user groups.The reliability and suitability were proved theoretically and by experimental results.The atmospheric corrosion measurement with IRP is presented to demonstrate the consistence of calculated corrosion rate with the measured rate.The result indicates that the proposed IFA algorithm plus data processing environment is an excellent alternative of the built-in data processing procedure.