PROBLEM TO BE SOLVED: To provide a vehicle insect deterrent device which efficiently generates a volatile component from a mat-like pesticide.SOLUTION: A vehicle insect deterrent device 1 includes: a holding member 63 which stores and holds an entire mat-like pesticide 85 a case body 61 where an insertion part, into which the holding member 63 is inserted, is formed and the holding member 63 is inserted into the insertion part to be stored and a heating body 113 which is provided at the case body 61 and contacts with at least one of a surface 85b and a rear surface 85c of the mat-like pesticide 85 to heat the surface.