The utility model discloses a collinear double-pulse laser-induced breakdown spectroscopy (LIBS) technology-based device for rapidly detecting benzopyrene content in edible oil, wherein a double-pulse width solid-state laser is connected with a digital pulse delay device; one end of an energy meter is connected with a laser beam generated by the double-pulse width solid-state laser; the other end of the energy meter is connected with a feedback device; the digital pulse delay device is respectively connected with a spectrograph and the feedback device; a reflector is arranged at the rear end of the laser beam generated by the double-pulse width solid-state laser, and is arranged at the front end of a focusing lens; an objective table is arranged below the focusing lens; glass ware is arranged on the objective table; an adsorption sample carrier is arranged inside the glass ware; an argon bottle is arranged on one side of the glass ware, and extends into the glass ware; a second focusing lens is arranged on one side above the adsorption sample carrier and is connected with the spectrograph; and a data storage device is connected with the spectrograph. The device disclosed by the utility model does not need to preprocess a sample, rapid real-time detection can be carried out, real-time monitoring and on-site rapid sampling inspection of the production process of the edible oil are achieved, and the working efficiency is effectively improved.