To provide a separation facility of construction mixed waste efficiently and continuously separating recycling combustibles from the construction mixed waste.

This separation facility of construction mixed waste containing long and large article of 500 mm or more, has a developing conveyor 3 developing and carrying the waste, and a long and large article separator 5 receiving the construction mixed waste developed in the developing conveyor 3 and separating long and large articles 6 from the waste. A middle-size article separator 14 separating the construction mixed waste with the long and large articles removed by the separator 5 into middle-size articles 300-500 mm and small articles less than 300 mm, a separating line 21 breaking middle-size bags separated in the middle-size article separator 14, and a small article separating line separating the small articles less than 300 mm separated in the middle-size article separator 14, into earth and sand less than 30 mm and small articles 30-300 mm, are disposed.