Provided is a method for embedding waste-plastic oilification technology in garbage incineration, comprising the following steps: firstly, separating garbage into dry and wet, the dry garbage entering a pretreatment unit of a waste-plastic oilification apparatus; the pretreatment unit liquefying waste plastic in the dry garbage, the non-plastic waste being separated upon being treated by a liquid–solid separation device; secondly, after liquefication, feeding the waste plastic into a pyrolysis unit to produce gasoline and diesel products; non-plastic waste still being discharged into an incinerator (9) for incineration; dioxin emissions in this process are far below standard values. The waste-plastic oilification technology is embedded in a garbage incineration method; the waste plastic garbage is upgraded from the value of “coal” to the value of “fuel oil”, and the waste plastic garbage is no longer burned in the incinerator (9); the amount of dioxin thus produced is very small, the combustion temperature of the incinerator (9) is greatly reduced, significantly saving on equipment investment and operating costs, and having significant economic and social benefits.