A　new　type　of　friction　pendulum　bearing(FPB)　with　Cu-stainless　steel　interfaces　and　uplift-restraint　device,　which　enables　to　overcome　the　shortages　such　as　low　pressure　capability　of　TEFLON-stainless　steel　interfaces　and　no　means　to　control　the　uplift　of　in-using　FPB,　was　introduced.　The　mechanical　property　of　the　new　bearing　was　discussed.　The　structural　system　of　the　bearing　was　illustrated,　and　its　theoretical　model　was　developed.　Meanwhile,　a　loading　capacity　3000kN　FPB　was　manufactured　for　mechanical　property　testing.　The　experiment　focuses　on　hysteretic　properties　and　frictional　coefficient,　and　the　influences　of　the　pressure　load　on　the　bearing　and　the　sliding　velocity　of　the　slider　were　examined　in　detail.　It　is　shown　that　the　hysteretic　loop　of　the　bearing　under　harmonic　excitation　shares　the　parallelogram　shape,　which　is　the　same　as　that　of　the　in-using　FPB,　and　the　average　frictional　coefficient　is　between　0.096　and　0.109.In　addition,　there　is　a　good　agreement　between　the　hysteretic　loops　obained　by　experiments　and　by　the　theoretical　model.　Therefore,　it　verifies　the　resonability　of　the　mechanical　model.