A biological information measuring apparatus includes a sensor unit as a biological information measuring module including a light emitting unit that emits light to an object, a light receiving unit that receives light from the object, and a wall portion which is provided between the light emitting unit and the light receiving unit. A width of the wall portion in a direction in which the light emitting unit and the light receiving unit are connected to each other is equal to or greater than 0.05 mm and equal to or less than 0.18 mm.