The　strong　ability　of　controlling　torque　and　tolerated　fault　operation　are　demanded　for　multiphase　permanent　magnet　synchronous　motor　drive　system　applied　in　such　as　locomotive　traction,　shipping-push,　and　so　on.　A　tolerated　fault　direct　torque　control　(DTC)　strategy　is　proposed　for　six-phase　symmetrical　winding　shifted-phase　60　degree　permanent　magnet　synchronous　motor　in　this　paper.　Firstly,　the　relationship　between　the　flux　linkage　and　torque　based　on　the　restructured　fictitious　variables　is　researched　under　the　condition　of　one　opened　phase.　Secondly,　the　optimal　control　strategy　of　fictitious　flux　linkage,　torque　and　zero-sequence　current　error　is　proposed　with　different　switching　combination　of　five-phase　invert　bridge　according　to　the　fictitious　voltage　vector　on　αβ　plane　used　to　convert　the　mechanic-electric　energy　and　zero-sequence　voltage　vector　on　z1z2　plane.　The　experimental　results　show　that　the　presented　DTC　has　fast　response　of　torque,　the　five-phase　stator　currents　are　sinusoidal　and　the　magnitudes　of　five-phase　current　are　the　same.　©　2015　Chinese　Society　for　Electrical　Engineering.