The invention discloses a method for assessing a cancer radiotherapy and chemotherapy standard conforming degree. The method includes the following steps: firstly, defining an assessment model of the cancer radiotherapy and chemotherapy standard conforming degree, secondly, formulating executing rules of difference assessment of radiotherapy and chemotherapy operation standards and difference assessment of chemotherapy drug use and radiation dosage use, enabling an assessor to respectively assess whether radiotherapy and chemotherapy processes of a certain patient conform to the radiotherapy and chemotherapy operation standards and chemotherapy drug use and radiation dosage standards or not, then, formulating a multi-level itemizing weighting rule so as to grade a total standard conforming degree of the radiotherapy and chemotherapy processes of the cancer patient, finally, taking corresponding measures on patient diagnosis and treatment based on the score, enabling a therapeutic schedule with the score lower than a veto threshold value and drug use with the score lower than a veto threshold value to be refused, and enabling a therapeutic schedule with the score higher than a standard-conforming threshold value and drug use with the score higher than a standard-conforming threshold value to be accurately submitted and applied. According to the method for assessing the cancer radiotherapy and chemotherapy standard conforming degree, the appearing probability of non-standard operations and non-standard drug use in the cancer radiotherapy and chemotherapy processes can be reduced.