It is always a primary issue of software projects to improve software quality for increasing the satisfaction rate of customers and the completeness of the product. This research provides a way to address this issue from testing aspect and a total solution to assist testers in managing testing, such as test plan management, test case management, defect reporting, unit testing monitoring, vertical requirement traceability updating, and supporting tool for developing functional test cases. Based on the practical analysis and design of testing problems, this research provides a testing assistant system and a total solution to facilitate testing activities and improve software quality. By real-time monitoring status of testing artifacts, relevant project members can perform their testing activities more efficiently and reveal product defects more easily. Eventually, the major defects can be removed before releasing, and software quality can be increased.