A testing system is provided. The testing system includes: test equipment and a testing-control apparatus. The test equipment is configured to perform tests on a device under test. The testing-control apparatus is configured to execute a test program to control the test equipment to perform a plurality of first test items in the test program on the device under test. The testing-control apparatus retrieves a test result of each of the first test items from the test equipment, and executes a test-program neural network to analyze the test result of each of the first test items to generate the test program for a next test iteration.