Thin film ferromagnetic resonance line width test fixture

The utility model provides a thin film ferromagnetic resonance line width test fixture, which comprises a central support rod, a test board for fixing a waveguide and a shell, the central supporting rod comprises a central probe station, a central probe support, a control latch and a rod. The central probe station is arranged at the uppermost part of the rod; the central probe support is used for supporting and fixing the test bench from the central position of the test bench. The control latch is used for fixing the position of the center probe support and controlling the center probe support to ascend and descend on the rod. The test board is a disc with a hole in the center; the shell comprises a shell main body, an edge probe station and an edge probe bracket; the shell main body is a cylinder with a clamping groove and is used for fixing the test board from the outer edge position of the test board; the edge probe bracket is fixed on the outer edge of the shell main body and is used for supporting the ed