The present invention discloses a method of measuring the dispersion degree of the radiating of MAT which includes RUT and RNUT both of which can work in the first frequency band and the second frequency band. The frequency band of RUT and RNUT has many combinations, and each frequency band corresponds to certain of channels. The method includes the steps of: step 1, establishing a testing environment with a plurality of wireless links of MAT; step 2, a plurality of channels are positioned in the first frequency band and the second frequency band; step 3, measuring the dispersion degree of the radiating of MAT in each channel combination under each frequency band combination of RUT and RNUT; step 4, judging that if each dispersion of the radiating being measured is beyond the preset value, if it is not, the testing is ended, while if it is, the transmitting powder of MAT is reduced, then the step 3 will be repeated to obtain a new group of dispersions of the radiating; if each of the new dispersion of the radiating is not beyond the preset value, the testing is ended, while if one of the dispersions of the radiating is beyond the preset value, the test is failed. The testing result in the present invention reflects the radio interference resisting ability more veritably.