The invention relates to a mobile terminal system stability test method and apparatus. The method comprises the steps of obtaining a test instruction, and executing a preset test case according to the test instruction; obtaining test time consumption of a current test and test time consumption of historical multiple tests, and calculating a time consumption average value corresponding to the current test according to the test time consumption of the current test and the test time consumption of the historical multiple tests; comparing the time consumption average value corresponding to the current test with a preset average time consumption threshold; when the time consumption average value corresponding to the current test is smaller than or equal to the preset average time consumption threshold, displaying that the current test succeeds, and displaying the time consumption average value corresponding to the current test; and when the time consumption average value corresponding to the current test is greater than the preset average time consumption threshold, displaying that the current test fails, and displaying the time consumption average value corresponding to the current test. According to the mobile terminal system stability test method, the test efficiency can be greatly improved. Correspondingly, the invention furthermore provides the mobile terminal system stability test apparatus.