There are many kinds of liquid flowmeter, which can be used to calibrate the liquid flow meter, which is different from the way of connection, calibration and data processing. In order to solve the liquid flow calibration device in information and intelligent level is low, to improve the decision accuracy of liquid flow calibration device for use and reduce employee training difficulty, and to improve the liquid flow calibration device for automatic data processing and calibration level to reduce the waiting period, the liquid flow calibration application integration platform is designed. Through the establishment of liquid flow calibration device of the Web expert system to improve the accuracy of decisionmaking based on improved convenience; platform accessed through Web; also provided learning and testing function of liquid flowmeter calibration procedures and related cases, so as to improve the use of platform. The application integration platform has been integrated the function of liquid flowmeter calibration related business, to provide the basis of the work application service function, which can effectively help reduce personnel device using decision error rate of about 40% and about 30% of the waiting period is shortened