The invention discloses a converting method for test cases of a software unit. The converting method comprises the following steps: acquiring a writing file of the test cases of the software unit; converting variable names and data formats on test case information in the writing file according to a preset conversion rule; exporting the converted test case information according to a format of a preset test case template to generate test cases meeting the requirements. The invention also discloses a converting system for the test cases of the software unit. According to the converting method andthe converting system disclosed by the invention, the converting efficiency and the converting quality of the test cases of the software unit can be improved.