Abstract:〔Abstract〕 Objective To evaluate the diagnostic value of breast molybdenum target combined with ultrasonography and magnetic resonance imaging in breast cancer. Methods 73 cases of suspected breast cancer admitted to Shantou Central Hospital from January 2015 to January 2020 were selected. All patients underwent magnetic resonance imaging, molybdenum target and ultrasound diagnosis. The postoperative pathological results were taken as the gold standard, and the accuracy of the above single and combined methods in the diagnosis of breast cancer was analyzed. Results The accuracy of breast cancer diagnosis by combination of the three methods was higher than that of any single method, and the difference was statistically significant (P < 0.05). Conclusion Magnetic resonance imaging, ultrasound and molybdenum target have advantages in the diagnosis of breast cancer. Combined use can help improve the detection rate and high application value.