Method for evaluating software quality based on test data

The invention discloses a method for evaluating software quality based on test data, which comprises the following steps: firstly, determining a case set evaluation formula for functional test and a case set evaluation formula for non-functional test; determining a sub characteristic evaluation formula of the software quality according to the case set evaluation formulas for the test; determining a characteristic evaluation formula of the software quality according to the sub characteristic evaluation formula of the software quality; and determining an evaluation formula of the software quality according to the characteristic evaluation formula of the software quality. The method determines the evaluation confidence level of the software quality, and determines a comprehensive evaluation formula of the software quality according to the evaluation result and the evaluation confidence level of the software quality. The method evaluates the software quality objectively, and has high accuracy.