To provide a highly responsive and low-cost load cell suited to protection of a distortion sensor from an external environment.

A load cell includes a fixed part 2 and a movable part 3, a pair of upper and lower beam parts 4 and 5, and a cylindrical part 6 located between both beam parts 4 and 5 and extended in front and back direction between the fixed part 2 and the movable part 3. The cylindrical part 6 has its outer periphery connected, in a part of the front and back direction, to the fixed part 2 and the movable part 3 via a connection part 18. Pairs of upper through-holes 7 and 8 and lower through-holes 9 and 10 are formed on an upper beam 4 side and a lower beam side. A distance between two distortion parts 4a and 4b and 5a and 5b of each of the beam parts 4 and 5, and a distance between two distortion parts 18a and 18b, and 18c and 18d of the outer peripheries of the cylindrical part 6, are shortened to increase a unique vibration frequency, thereby enabling fast response. Further, formation of connection grooves for respectively connecting the pairs of upper through-holes 7 and 8 and lower through-holes 9 and 10 is made unnecessary.