Abstract: Antiterrorist safety inspection technology has become a hot topic. The birth and development of antiterrorist safety inspection technology are the contribution of physicists, because physics provides various ways to perform safety inspection. This paper briefly describes the basis of technologies such as X-ray and γ-ray detection, quadrapole resonance analysis, pulsed fast neutron analysis, ion mobility spectrometry, millimeter wave detection, acoustic inspection, magnetic field defection and electromagnetic pulse detectors.