A mold for tire molding comprising a plurality of segments for molding a tread part which are arranged along a tire peripheral direction, an outer ring which is moved in a tire width direction to move the plurality of segments in a tire radial direction, and an energizing mechanism having an energizing portion for energizing the plurality of segments toward outside in the tire radial direction; wherein the segments each have a first contacting part which comes into contact with the outer ring moved to one side in the tire width direction and a second contacting part which comes into contact with the outer ring moved toward the other side in the tire width direction; the outer ring has a first sliding part which is to slidably contact with the first contacting part of the segment when moved to one side in the tire width direction to push the first contacting part of the segment toward inside in the tire radial direction and a second sliding part which is to slidably contact with the second contacting part of the segment when moved to the other side in the tire width direction to push the second contacting part of the segment which is energized by the energizing mechanism toward outside in the tire radial direction, characterised in that the mold for tire molding further comprises a guiding member for guiding the segment which is moved in the tire radial direction, the guiding member being connected with the segment with a play allowing inclination of the segment in a posture for molding toward the outside in the tire radial direction, and wherein the segment is inclined from the posture for molding the tread part of the tire toward the outside in the tire radial direction by the energizing portion to energize an end of the segment and incline it outside in the tire radial direction when the segment is separated outwardly in the tire radial direction from the tread part of the tire. wherein the segments each have a first contacting part which comes into contact with the outer ring moved to one side in the tire width direction and a second contacting part which comes into contact with the outer ring moved toward the other side in the tire width direction; the outer ring has a first sliding part which is to slidably contact with the first contacting part of the segment when moved to one side in the tire width direction to push the first contacting part of the segment toward inside in the tire radial direction and a second sliding part which is to slidably contact with the second contacting part of the segment when moved to the other side in the tire width direction to push the second contacting part of the segment which is energized by the energizing mechanism toward outside in the tire radial direction, characterised in that the mold for tire molding further comprises a guiding member for guiding the segment which is moved in the tire radial direction, the guiding member being connected with the segment with a play allowing inclination of the segment in a posture for molding toward the outside in the tire radial direction, and wherein the segment is inclined from the posture for molding the tread part of the tire toward the outside in the tire radial direction by the energizing portion to energize an end of the segment and incline it outside in the tire radial direction when the segment is separated outwardly in the tire radial direction from the tread part of the tire.