Measurement of permeability spectrum in the microwave range is essential to the development of soft magnetic film and thin microwave absorber.Focusing on optimization design of microstrip-line system for measurement of microwave permeability spectrum,design and manufacture of the testing clamp used in the micro~strip-line short circuit method were discussed in this paper.Design scheme of the testing clamp was put forward firstly.Then,simulation and optimization of the testing clamp were accomplished with th...