Disclosed is a resource management planning support device 1 including a learning information storage section (storage section 13), a duty recommendation processing section 110, a planning processing section (operation rescheduling planning processing section 120), and a screen processing section 140. The learning information storage section stores plan result information regarding existing operation rescheduling plans. The duty recommendation processing section 110 exercises a prior learning function to generate a duty recommendation model for recommending a duty. The planning processing section exercises a planning function to create an operation rescheduling plan by selecting a duty template suitable for a planning target train set according to the duty recommendation model generated by the duty recommendation processing section 110. The screen processing section 140 outputs a plan result display screen 147 for displaying the operation rescheduling plan created by the planning processing section.