A power generating element comprising: a support frame formed in a frame shape in plan view; a vibrating body provided inside the support frame; a first bridge portion and two second bridge portions (35A, 35B) configured to support the vibrating body on the support frame; and a charge generating element that generates a charge at the time of displacement of the vibrating body, wherein the support frame includes a first frame portion arranged on a first side with respect to the vibrating body and includes a second frame portion arranged on a second side opposite to the first side with respect to the vibrating body, the first bridge portion couples the vibrating body with the first frame portion, and the second bridge portions (35A, 35B) couple the vibrating body with the second frame portion, wherein the vibrating body includes: a first weight body coupled to the first bridge portion; second weight bodies coupled to the corresponding second bridge portion; and two third bridge portions (70A, 70B), each of the two third bridge portions (70A, 70B) coupling the first weight body with the corresponding second weight body, a first weight body supporting portion that supports the first weight body extends from the first bridge portion; a second weight body supporting portion (28A, 28B) that supports the second weight body extends from the second bridge portion; and the first weight body and the second weight body are spaced apart from each other, wherein the second weight body and the second bridge portion are arranged on both sides of the first bridge portion, each of the two third bridge portions (70A, 70B) is arranged between the first bridge portion and the corresponding second bridge portion, the first weight body is coupled to each of the first bridge portion and the third bridge portion (70A, 70B), the second weight body is coupled to the corresponding second bridge portion and the corresponding third bridge portion (70A, 70B), and one second weight body and the other second weight body are spaced apart from each other. a support frame formed in a frame shape in plan view; a vibrating body provided inside the support frame; a first bridge portion and two second bridge portions (35A, 35B) configured to support the vibrating body on the support frame; and a charge generating element that generates a charge at the time of displacement of the vibrating body, wherein the support frame includes a first frame portion arranged on a first side with respect to the vibrating body and includes a second frame portion arranged on a second side opposite to the first side with respect to the vibrating body, the first bridge portion couples the vibrating body with the first frame portion, and the second bridge portions (35A, 35B) couple the vibrating body with the second frame portion, wherein the vibrating body includes: a first weight body coupled to the first bridge portion; second weight bodies coupled to the corresponding second bridge portion; and two third bridge portions (70A, 70B), each of the two third bridge portions (70A, 70B) coupling the first weight body with the corresponding second weight body, a first weight body supporting portion that supports the first weight body extends from the first bridge portion; a second weight body supporting portion (28A, 28B) that supports the second weight body extends from the second bridge portion; and the first weight body and the second weight body are spaced apart from each other, a first weight body coupled to the first bridge portion; second weight bodies coupled to the corresponding second bridge portion; and two third bridge portions (70A, 70B), each of the two third bridge portions (70A, 70B) coupling the first weight body with the corresponding second weight body, a first weight body supporting portion that supports the first weight body extends from the first bridge portion; a second weight body supporting portion (28A, 28B) that supports the second weight body extends from the second bridge portion; and the first weight body and the second weight body are spaced apart from each other, wherein the second weight body and the second bridge portion are arranged on both sides of the first bridge portion, each of the two third bridge portions (70A, 70B) is arranged between the first bridge portion and the corresponding second bridge portion, the first weight body is coupled to each of the first bridge portion and the third bridge portion (70A, 70B), the second weight body is coupled to the corresponding second bridge portion and the corresponding third bridge portion (70A, 70B), and one second weight body and the other second weight body are spaced apart from each other.