▎ 摘　　要

NOVELTY - The utility model claims a complete device for preparing graphene by laser stripping, comprising a refining grading device (1), air floating device (2), a pulse laser emitter (3), the graphene collecting device (4); the refining grading device (1) is provided with a helical control valve (11), thin knife (12), grading knife (13), the air floating device (2) is set with high pressure air flow valve (21), an air flow valve (22), a spiral flow passage (23); the quartz inner wall (24), emission power of said pulse laser emitter (3) is 5-10kW, pulse width is 0.1ms-10ms, the pulse frequency is 100-1000 Hz, single pulse energy is 200-300J; the graphene collecting device (4) is cloth filtration collection bag. the device of the utility value is very high in application of preparing graphene field laser to propulsion.