Waste light emitting diode (LED) contains a variety of valuable metal elements, and the recycling of these elements has attracted wide attention. In this work, the distribution characteristics of valuable elements in LED from bulb lamps (L-LED) and SMD 2835 LED (S-LED) were systematically analyzed. XRD, FTIR, ICP-OES, and SEM-EDS methods were used to study the mass composition, phase composition, types of packaging resin and distribution characteristics of valuable metals in the two LEDs. Based on these results, the pre-enrichment and separation of valuable elements in LED using mechanical crushing and screening methods was proposed. The results showed that the lead frames of L-LED and S-LED were pure copper and brass material, respectively. The packaging resins of the two kinds of LED were phenyl methyl silicone resin containing hydroxyl group. The main ingredients of the phosphor in the packaging resin of L-LED and S-LED were Y3Al3.08Ga1.92O12: Ce3+ and Y3Al5O12: Ce3+, respectively. Rare earth elements such as Y, Ce, and Eu existed in the packaging resins, and metal elements such as Cu, Zn, Ni, W, and Ag existed on the metal substrates of lead frames. The scattered element Ga was present only in the chips in S-LED, while it was distributed in both the packaging resin and the chips in L-LED. The components of LED were effectively separated by the processes of mechanical crushing and screening. After crushing and screening, elements Cu, Zn, Ni, W, and Ag were enriched in the screening products with particle size >0.6 mm, and elements Ga, Y, Ce were concentrated in the screening products with particle size <0.6 mm. The pre-treatment process used physical means to enrich and separate valuable elements, which was conducive to the subsequent recovery and utilization of valuable elements.