A three-section linkage drawer slides apparatus, includes an upper rail, a middle rail, a fixed rail, an upper linkage rack, and a lower linkage rack, wherein the middle rail is slidably connected to the fixed rail through the lower linkage rack, the upper rail is slidably connected to the middle rail through the upper linkage rack, the upper linkage rack and the lower linkage rack are of separate structures, the upper linkage rack is mounted between the middle rail and the upper rail after being assembled, and the lower linkage rack is mounted between the fixed rail and the middle rail after being assembled. The upper linkage rack and the lower linkage rack are configured as separate structures, the manufacturing process can thus be simplified, so the manufacturing cost is reduced.
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