The invention discloses a friction energy dissipation device. The friction energy dissipation device comprises a main body and a cylindrical rotating body, wherein a center hole which penetrates through the left side and the right side of the main body is formed in the main body, an upward hollow cavity is formed in the inner part of the main body, and a convex part is arranged at the bottom part of the hollow cavity; the cylindrical rotating body is located in the hollow cavity, the upper side wall of the cylindrical rotating body is provided with an upper concave part which is matched with the convex part, the lower side wall of the cylindrical rotating body is provided with a lower concave part which is matched with the convex part, a side hole which penetrates through the left side and the right side of the cylindrical rotating body along the axial direction is formed in one side, which is close to the upper concave part, of the cylindrical rotating body, and the side hole coincides with the center hole when the cylindrical rotating body rotates to a position where the upper concave part is attached to the convex part. According to the friction energy dissipation device disclosed by the invention, the volume is small, the structure is simple, the use is convenient, the energy dissipation effect is obvious, and the friction energy dissipation device can be repeatedly used.