Abstract: In the emergency rescue site where people are trapped and buried by disasters, it is an indispensable and important link to build a life channel “quickly, accurately and safely”. Laser disassembly has the advantages of strong adaptability and high precision. In view of the problems that the existing laser disassembly equipment is difficult to apply in rescue due to its large weight, poor convenience and no basis for disassembly planning, this paper breaks through the technical bottlenecks of laser efficient synthesis, precise heat dissipation and component lightweight, and safe construction of disassembly and rescue channels, and develops 3 types of lightweight and efficient laser disassembly equipment such as 2 kW portable, 4 kW pushcart and 10 kW vehicle-mounted, and a set of laser disassembly and rescue auxiliary decision-making system. Among them, the average specific power of the laser optical / thermal module of the 3-type lightweight and efficient laser disassembly equipment is ≥120 W / kg, the continuous working time is ≥8 h under the ambient temperature < 45 °C, and the tracking and pointing accuracy and cutting accuracy are better than 1mm within 100 m. The 2 kW portable laser breaking equipment is composed of laser and tracking and pointing system, which is mainly suitable for the environment with visibility more than 150 m. The 4 kW trolley laser demolition equipment is composed of laser, tracking and aiming system and trolley, which is mainly suitable for demolition environment with visibility exceeding 300 meters. The 10 kW vehicle-borne laser demolition equipment is an integrated special equipment, which is composed of laser demolition equipment, crawler unmanned chassis, mechanical arm, power system, control system and so on. It is mainly suitable for the environment with visibility more than 450 meters. The laser-assisted decision-making system for demolition and rescue has the functions of flammable and explosive gas detection ( detection radius≥150 m, gas type≥8, volume fraction error≤0.001%), life-aware power-off protection ( time≤0.01 s), and establishment of the best demolition point. According to the on-site information, the best demolition point can be evaluated and determined from the perspective of demolition structure instability, demolition efficiency and safety. Taking the mine rescue shaft dredging operation scene as an example, typical obstacles such as anchor nets, steel plates, steel bars, and deposits such as concrete and bricks in the scene are selected as test objects to test the perforation and cutting performance of portable, trolley-type, and vehicle-mounted laser demolition equipment. The test results show that the technical equipment developed in this project is a useful supplement to the existing mine rescue demolition equipment and is expected to play a key role in mine disaster rescue. In the future, more materials will be used in the rescue site, such as the removal of dangerous objects, the construction of escape channels for high-rise buildings, the demolition of vehicles in traffic accidents, and the demolition of narrow spaces. The application adaptability test of more laser demolition equipment will be carried out in order to better serve more rescue sites.