Multi-degree-of-freedom connecting frame and excavator

The utility model relates to engineering machinery, and discloses a multi-degree-of-freedom connecting frame and an excavator, the multi-degree-of-freedom connecting frame comprises a supporting plate (1), the left side of a first plate surface of the supporting plate is provided with a first plate surface left side bearing seat (2) used for bearing a first shaft body; the right side of the first plate surface is provided with a first plate surface right side bearing seat (3) for bearing the second shaft body; a second plate surface upper side bearing seat (4) for bearing the third shaft body is arranged on the upper side of a second plate surface in the supporting plate; the lower side of the second plate face is provided with a second plate face lower side bearing seat (5) used for bearing a fourth shaft body, the axial direction of the first plate face left side bearing seat and the axial direction of the first plate face right side bearing seat are in the first direction, and the axial direction of the se