This tool is an indirect terminal integration process Level 3 testing tool independently developed based on China UnionPay's card acceptance terminal integration testing mechanism. The tool is divided into two parts: the test card and the simulation host. Among them, each test card has one or two test features, and supports various functions such as DES/SM algorithm and contactless Type B protocol; the simulation host can realize the automatic selection of issuer information, terminal information, test case filter, test log preservation, and automatic analysis and testing report generation and other functions.