Abstract: In order to improve underground mine electromagnetic environment for mine electrical and electronic products, the paper presents threshold value and measuring method of conduction stray interference of antenna ports, the threshold value and measuring method of radiation stray interference of enclosure ports, the th reshold value and measuring method of harmonic current interference of AC power ports, the threshold value and measuring method of conduction interference of powe r ports, the threshold value and measuring method of electric field radiation interference of enclosure ports.In order to ensure normal operation of coal mine electrical a nd electronic products, the paper presents immunity characteristics criterion, immunity and test method of radio frequency electromagnetic field radiation, immunity and test method of electrical fast transient pulse noise, immunity and test method of surge (impact) ，immunity and test method of RF induction conduction interference, imm unity and test method of voltage sag, short interruption and voltage variation, immunity and test method of low frequency of harmonic, inter-harmonic and signal of pow er net of AC power ports, immunity and test method of stray current interference, etc.