One test method for testing the liquid filling compress method when metal distorts and flows to control the stress field formed by metal and to observe and study the behavior of metal distortion and flowing in the beforehand designed stress field. The first step is to record sample originality data. The second is putting the sample into liquid filling room. The third is pressing drift pin and making axial main press on the sample in the liquid filling room, and at the same time changing the volume of high press medium in the liquid filling room to affect the liquid press. Change the liquid press to get the needed main press of landscape orientation according to the beforehand designed liquid press and the load of press machine and the sample compresses and distorts then record data. The forth is repeating the second and third one by testing different liquid press and load of press machine and recording the data. The fifth is using this method to analyze the data to get the relationship between stress and metal distortion and flowing.