The invention relates to the field of polymer materials and in particular relates to a waste artificial grass filament recycling method and a produced product. The product produced by recycling waste artificial grass filaments is characterized by being prepared from the following raw materials in parts by weight: 0.5-2 parts of compatilizer A, 0.1-1 part of plasticizer B, 0.3-2 parts of coupling agent C, 10-50 parts of artificial grass filament regeneration particles, 50-90 parts of polyolefin foaming agent masterbatch and 5-20 parts of crosslinking agent masterbatch. The method has the beneficial effects that by treating the waste artificial grass filaments through the following seven steps: collecting and cleaning, chopping, granulating and modifying, sheet extruding, high-temperature foaming, cooling and sizing and cutting and rolling, not only are wastes reutilized but also the environment is purified, pollution is reduced and the market application prospect is extensive; in the chopping step, superfine chopping is unnecessary to be used and the length of the artificial grass filaments is controlled to be 50cm; the method is suitable to popularize and use.