The invention provides a waste sorting and recycling system. The waste sorting and recycling system comprises a primary screening system, a flotation separation system, a breaking system, a heating degreasing system, a winnowing system and a water circulation system. Household waste sequentially passes through the primary screening system, the floatation separation system, the breaking system and the heating degreasing system and then enters the winnowing system. The waste sorting and recycling system is suitable for recycling all urban household waste and has the beneficial effects of being novel and simple in structure, high in separation efficiency and work efficiency, low in labor demand, low in separation cost, stable in work and the like.