The invention discloses a test decision method and device, a terminal device, and a computer-readable storage medium, and relates to the field of medical assistance. The test decision method includesthe following steps: receiving an input test report of a patient; cleaning the data in the test report to obtain a cleaned test report; analyzing the cleaned test report and a preset knowledge map toobtain a decision result. The method, after analyzing the test report and the preset knowledge map, provides a corresponding decision result for a doctor's reference so as to improve the accuracy of the doctor's diagnosis result. In addition, cleaning the data of the test report before analysis can improve the accuracy of the decision result and further improves the accuracy of the doctor's diagnosis.