A grip-type electrocardiographic measuring device (1) includes a main body portion (10) that has a substantially spheroid shape, a plate-shaped flange portion (18) that is mounted on a side surface of the main body portion (10), a first electrocardiographic electrode (19A) that is disposed at a back surface side of the main body portion (10) and makes contact with one hand when the main body portion (10) is gripped by the one hand, and a second electrocardiographic electrode (19B) that is disposed on a surface of the flange portion (18) and makes contact with a finger of the other hand when the flange portion (18) is pinched by the other hand. The flange portion (18) has flexibility and is bendable from a mounting portion on the main body portion (10).