A handheld electrocardiographic measurement device (1) includes a substantially spheroidal body part (10), a stopper portion (11) projecting along an axial direction of the body part (10) to restrict a position of a thumb of one hand by abutting on a side surface of the thumb when a user grips the body part (10) with the one hand, a platelike flange portion (18) projecting from a side surface of the body part (10) in a direction substantially orthogonal to a projecting direction of the stopper portion (11), a first electrocardiographic electrode (19A) disposed on a back side of the body part (10) to touch a finger of the one hand when the body part (10) is gripped with the one hand, and a second electrocardiographic electrode (19B) disposed on a surface of the flange portion (18) to touch a finger of the other hand when the flange portion (18) is pinched by the other hand.
