The Automation Testing Life Cycle is a structured approach to testing applications thoroughly and efficiently. It involves six stages: Determining the scope of test automation, selecting the right tool for automation, creating a test plan, setting up the test environment, developing and executing test scripts, and analyzing and generating test results. The cycle aims to identify the feasibility of automation, select the right tools, design the test architecture, set up the test environment, develop and execute test scripts, and analyze and report on test results. This approach helps organizations achieve quality software products within limited resources and timelines.