The invention provides a plastic degradation method, including the following specific steps: S1. Screen and clean the collected plastic raw materials, and conduct mechanical crushing to reduce their volume; S2. Soak the pretreated raw materials in a soaking solution for 24‑72 hours, with the soaking temperature maintained at 37‑60℃; S3. Clean the soaked raw materials and add them into a fermentation tank for fermentation and degradation; S4. Collect the degraded mixed liquid for secondary extraction and recycling. The invention enables plastics to be easily recycled and reused repeatedly. After recycling and treatment, waste plastics can be remade into products or processed into gasoline and diesel, effectively solving the environmental and social problems brought by plastic pollution.

Area Code: NL

Application Number: CN201710989322.7