白盒测试作为测试人员常用的一种测试方法，越来越受到测试工程师的重视。白盒测试并不是简单的按照代 码设计用例，而是需要根据不同的测试需求，结合不同的测试对象，使用适合的方法进行测试。因为对于不同复杂度的代码逻辑，可以衍生出许多种执行路径，只有 适当的测试方法，才能帮助我们从代码的迷雾森林中找到正确的方向。本文介绍六种白盒子测试方法：语句覆盖、判定覆盖、条件覆盖、判定条件覆盖、条件组合覆 盖、路径覆盖。-staff as a commonly used test methods, test engineers have been increasing attention. White Box is not a simple design used in accordance with the code cases, but according to the different needs of the demand for testing, combining different test objects, the use of appropriate methodologies for testing. For different complexity of the logic code can be derived from many types of implementation of the road, the only appropriate test methods, We can help from the fog forest code to find the correct direction. This paper describes the six white-box testing methods : statement coverage and determining coverage, the coverage conditions and determining conditions of coverage, conditions portfolio coverage, Path coverage.