The invention provides an automatic regression testing method based on a cloud management platform. The automatic regression testing method comprises the following steps of: S1, generating an automatic testing case library and a testing database, S2, obtaining the version of the to-be-tested software and the correction of the software developer and the software tester on the automatic test case library and the test database through the cloud management platform, S3, executing the testing script through the cloud management platform, S4, enabling the testing script to read the test cases in thetest case library through a test tool, acquiring test data according to the test cases, writing the test data into an analog message, automatically sending the analog message to perform regression test on the to-be-tested software of the corresponding version, and verifying a test result; and returning to step S2. According to the method, manual operation is reduced, a large number of test casesare executed in a short time, quick positioning is achieved, the system robustness after publishing is checked, and convenience is brought to software developers to carry out self-testing in the development process and software testers to quickly execute a large number of cases before publishing to carry out publishing verification.