The invention discloses an LED lamp reuse process. The LED lamp reuse process comprises the following steps: (A) a waste fluorescent lamp recovery box is used for recovering and transferring into a cleaning machine for cleaning; (B) two ends of fluorescent lamps are cut by a cutter, and are smashed; metal chips and plastic chips are respectively conveyed into a metal recoverer and a plastic recoverer; and the metal recoverer and the plastic recoverer are heated; (C) lamp tubes with two cut ends are heated; and (D) the lamp tubes are put in a ultrasonic pool for ultrasonic processing, and are fed in a lamp tube cleaning pool for cleaning the inner walls of the lamp tubes; and finally, ultrasonic processing powder-contained liquid is mixed with lamp tube cleaning pool powder-contained liquid for filtering. The LED lamp reuse process separates and recover fluorescent powder under the condition of not smashing glass, and guarantees the glass recovery quality and the purity of the fluorescent powder.