A binding machine comprising: a wire feeder configured to feed a wire to be wound around an object to be bound; a binding part configured to twist the wire wound around the object to be bound; a curl guide configured to curl the wire fed by the wire feeder; and a draw-in guide configured to guide the wire curled by the curl guide to the binding part, wherein the draw-in guide includes a first guide having a pair of side surface portions that restrict an axial position of the loop formed by the wire curled by the curl guide, a second guide that restricts a radial position of the loop formed by the wire, the second guide having a bottom surface portion that connects the pair of side surface portions, a guiding facilitation part that comes into contact with the wire from a radially outer side of a loop that is formed by the wire curled by the curl guide, and applies, to the wire, a force that changes a feeding path of the wire, the guiding facilitation part being provided on the bottom surface portion, and a guiding concave portion, provided on a downstream side of the guiding facilitation part in a feeding direction of the wire, into which the wire, expanding toward the radially outer side of the loop, enters, characterized in that the guiding facilitation part includes a convex portion provided on an open end of the draw-in guide and protruding from the bottom surface portion toward the curl guide, the open end being opened in a space surrounded by the pair of side surface portions and the bottom surface portion and being configured to allow the wire entering therethrough, or a rotating member which the wire is able to contact with. a wire feeder configured to feed a wire to be wound around an object to be bound; a binding part configured to twist the wire wound around the object to be bound; a curl guide configured to curl the wire fed by the wire feeder; and a draw-in guide configured to guide the wire curled by the curl guide to the binding part, wherein the draw-in guide includes a first guide having a pair of side surface portions that restrict an axial position of the loop formed by the wire curled by the curl guide, a second guide that restricts a radial position of the loop formed by the wire, the second guide having a bottom surface portion that connects the pair of side surface portions, a guiding facilitation part that comes into contact with the wire from a radially outer side of a loop that is formed by the wire curled by the curl guide, and applies, to the wire, a force that changes a feeding path of the wire, the guiding facilitation part being provided on the bottom surface portion, and a guiding concave portion, provided on a downstream side of the guiding facilitation part in a feeding direction of the wire, into which the wire, expanding toward the radially outer side of the loop, enters, a first guide having a pair of side surface portions that restrict an axial position of the loop formed by the wire curled by the curl guide, a second guide that restricts a radial position of the loop formed by the wire, the second guide having a bottom surface portion that connects the pair of side surface portions, a guiding facilitation part that comes into contact with the wire from a radially outer side of a loop that is formed by the wire curled by the curl guide, and applies, to the wire, a force that changes a feeding path of the wire, the guiding facilitation part being provided on the bottom surface portion, and a guiding concave portion, provided on a downstream side of the guiding facilitation part in a feeding direction of the wire, into which the wire, expanding toward the radially outer side of the loop, enters, characterized in that the guiding facilitation part includes a convex portion provided on an open end of the draw-in guide and protruding from the bottom surface portion toward the curl guide, the open end being opened in a space surrounded by the pair of side surface portions and the bottom surface portion and being configured to allow the wire entering therethrough, or a rotating member which the wire is able to contact with. a convex portion provided on an open end of the draw-in guide and protruding from the bottom surface portion toward the curl guide, the open end being opened in a space surrounded by the pair of side surface portions and the bottom surface portion and being configured to allow the wire entering therethrough, or a rotating member which the wire is able to contact with.