To prevent difficulty in delivery due to adhesion of a material to a screw and burying of the material in gaps of blades of the screws and becoming rod-like even in delivery work of a material with strong adhesion.

In the screw type delivery device 1, two screws 11a and 11b horizontally extending along a bottom wall 21 and sharing a base end position are provided side by side and a delivery port 20 communicated with a conveyor 3 arranged below it is formed in the bottom wall 21 at the base end position of the screws 11a and 11b. The two screws 11a and 11b rotate around respective axes in an overlapped state so protrusion parts 14a or 14b of one screw 11a or 11b fit in groove parts 15a or 15b of the other screw.