The invention relates to a portable
laser injurious-
insect killing device. Injurious insects such as mosquitos and flies seriously threaten and affect people's lives, and various existing expelling and killing methods and devices are not ideal in effect. The portable
laser injurious-
insect killing device is composed of a shell, a
laser searching device, a searching identifying module, an
insect-killing laser device, a
safe system, a
power module, a master control module, a child lock
system and an optical
system. The shell is provided with a
narrow band filter, a state electric-quantity indicator lamp, a function key, object indicating lamps, an object setting key and a charging port; passive pyroelectric
infrared detecting devices, a mainboard, an optical lens, a vibration lens, a laser generator, the insect-killing laser device, a photosensitive
receiver, a
buzzer, the optical
system, the master control module, a
lithium ion battery, the
power module and the child lock system are arranged in the shell. The insects can be automatically searched through line
laser scanning; an attacking laser beam is started and emitted while the
buzzer generates sounds, and attacking lasers instantly
burn out wings of the insects or directly burn the insects to death. The portable laser injurious-insect killing device is a healthy, safe, efficiently, intelligent and suitable injurious-insect-killing tool, and is high in technical content, low in cost, convenient to operate and beneficial to popularization.