Contact the supervisor in time, explain the situation and ask him to sign the correct name. If the name of the supervisor is wrong on the test report, you should contact the supervisor in time, explain the situation and ask him to sign the correct name. If the supervisor is not on site, you can contact him by phone or email and explain the situation. If the supervisor agrees to correct, the date and signature of correction can be indicated on the test report, and the supervisor is required to sign the correct name. If the competent leader has any objection to the correction, he may apply to the relevant departments or institutions for handling.