The invention relates to a test case generation method and is suitable for the vehicle driving test. The test case generation method comprises steps of S1 of scene data acquisition, scene data includes external data and internal data when the vehicle is in a dangerous or accidental condition under natural driving conditions; S2, data classification, same types of the scene data are concentrated together to form multiple sets of data bases; and S3, data analysis, the test case is formed through multiple projections of the data bases based on the trigger point when the dangerous working condition or the accident working condition occurs. The test case generation method is advantaged in that the test case can be randomly generated, objectivity of vehicle evaluation is guaranteed, and evaluation validity is improved.