The emitter threat level evaluation is an important topic in electronic countermeasures. To deal with the disadvantages of the current methods for emitter threat level evaluation, the UTilites Additives DIScriminantes(UTADIS) method, which is a method of multicriteria classification, is introduced. It is indicated that UTADIS can produce reasonable and accurate evaluations of emitter threat level that reflect the preference of decision makers and can give more information of emitter threat degree. Thus, UTADIS has advantages in performance and applications and is a new way to effectively evaluate the emitter threat level.