PROBLEM TO BE SOLVED: To provide a chemical injection device capable of setting an injection protocol with simple operation and intuitively.SOLUTION: A chemical injection device comprises: an injection head having a piston drive mechanism and a console having a display and a computer unit electrically connected to the piston drive mechanism. The computer unit is configured so as to: a1: make a display display a plurality of selectable body section icons or a plurality of selectable imaging region icons a2: make the display display a plurality of selectable target part icons corresponding to a body section or imaging region, when an icon of the body section or imaging region is selected from the icons a3: present a contrast radiography chemical injection condition corresponding to a target part on the display, when a target part icon of the target part is selected from the target part icons and a4: set the presented injection condition or an injection condition obtained by modifying the presented injection condition as an injection protocol, when a user confirms or modifies the presented injection condition.
