With the advance of nuclear weapons spacebornes

nuclear propulsion systems and nuclear reactors

the problem of radiation environment becomes more and more important during the last 20 years. Since the electronic devices and systems are quite sensitive to nuclear radiation

they must be well designed and hardened in order to operate and survive in space and near the nuclear reactor or the explosion of a nuclear weapon. So the antinuclear radiation electronics have been formed and developed into a new branch of electronics. An outline of so called antinuclear radiation electronics would include three major categories: （1） radiation effects （to make radiation tests and to evaluate the survivabilily）; （2） damage mechanism （to study the damage mechanism and to determine the failure modes）; （3） nuclear hardening （to make the hardening design and fabrication techniques）. An overview of the new speciality is presented in this paper.