PROBLEM TO BE SOLVED: To provide quick confirmation of a current position or a travel direction of a virtual endoscopic image in the entire bronchus in a medical image diagnosis support device that creates image for supporting the insertion of an endoscope into a both tube path like the bronchus.SOLUTION: A medical image diagnosis support device includes: a three-dimensional image acquiring part 11 for acquiring a three-dimensional image obtained by photographing a human body a graph structure creation part 12 that extracts a tubular structure contained in a three-dimensional image and a branch point projection image creation part 14 that creates a branch point projection image which is projected on a two-dimensional plane perpendicular to a branch point contained in the tubular structure in a body axial direction.
