Fan blade and portable fan

The utility model provides a fan blade which comprises a fan blade connecting piece and a fan blade piece, the fan blade connecting piece comprises an annular impeller and a connecting arm, the annular impeller is in a circular ring shape, one end of the connecting arm is connected to the inner ring wall of the annular impeller, the other end of the connecting arm is fixed to the outer wall of a fan blade cover piece, and the fan blade cover piece is fixed to the fan blade connecting piece. The multiple fan blade pieces are evenly fixed to the top face and the bottom face of the annular impeller in the circumferential direction of the fan blade cover piece, each fan blade piece is in an arc shape, and each fan blade piece comprises a first blade and a second blade which extend in the axial direction of a rotating shaft of the fan blades and are arranged in the circumferential direction. At least part of the first blade is located on the top face of the annular impeller, and at least part of the second blade i