A driving assembly of a disconnecting switch, characterized in that, it comprises: a frame body, which is designed with a first side wall and a second side wall arranged opposite each other, wherein the side of said first side wall facing away from said second side wall is a mounting surface; and a driving device, which comprises: a driving shaft, which passes through and is set on said first side wall and said second side wall, wherein three first clamping slots are arranged at intervals on said driving shaft along its axial direction; a driven shaft, which passes through and is set on said first side wall and said second side wall, wherein three second clamping slots are arranged at intervals on said driven shaft along its axial direction, and the positions of said second clamping slots correspond to said first clamping slots; three contact pieces, which are set between said first side wall and said second side wall; wherein each said contact piece comprises a supporting part and a pair of contact parts; one end of said contact parts is hinged to said supporting part, one of said pair of contact parts is placed in said first clamping slot, and the other one of said pair of contact parts is placed in said second clamping slot; a first linkage gear, which is coaxial with said driving shaft and fixedly connected to one end of said driving shaft; wherein said first linkage gear is located at one side of said mounting surface; and a second linkage gear, which is coaxial with said driven shaft and fixedly connected to one end of said driven shaft; wherein said second linkage gear is located at one side of said mounting surface and engages with said first linkage gear; wherein when said driving shaft rotates, said driven shaft can be driven to rotate through said second linkage gear, and each pair of said contact parts can be driven to rotate to realize closing and opening of said disconnecting switch. a frame body, which is designed with a first side wall and a second side wall arranged opposite each other, wherein the side of said first side wall facing away from said second side wall is a mounting surface; and a driving device, which comprises: a driving shaft, which passes through and is set on said first side wall and said second side wall, wherein three first clamping slots are arranged at intervals on said driving shaft along its axial direction; a driven shaft, which passes through and is set on said first side wall and said second side wall, wherein three second clamping slots are arranged at intervals on said driven shaft along its axial direction, and the positions of said second clamping slots correspond to said first clamping slots; three contact pieces, which are set between said first side wall and said second side wall; wherein each said contact piece comprises a supporting part and a pair of contact parts; one end of said contact parts is hinged to said supporting part, one of said pair of contact parts is placed in said first clamping slot, and the other one of said pair of contact parts is placed in said second clamping slot; a first linkage gear, which is coaxial with said driving shaft and fixedly connected to one end of said driving shaft; wherein said first linkage gear is located at one side of said mounting surface; and a second linkage gear, which is coaxial with said driven shaft and fixedly connected to one end of said driven shaft; wherein said second linkage gear is located at one side of said mounting surface and engages with said first linkage gear; wherein when said driving shaft rotates, said driven shaft can be driven to rotate through said second linkage gear, and each pair of said contact parts can be driven to rotate to realize closing and opening of said disconnecting switch. a driving shaft, which passes through and is set on said first side wall and said second side wall, wherein three first clamping slots are arranged at intervals on said driving shaft along its axial direction; a driven shaft, which passes through and is set on said first side wall and said second side wall, wherein three second clamping slots are arranged at intervals on said driven shaft along its axial direction, and the positions of said second clamping slots correspond to said first clamping slots; three contact pieces, which are set between said first side wall and said second side wall; wherein each said contact piece comprises a supporting part and a pair of contact parts; one end of said contact parts is hinged to said supporting part, one of said pair of contact parts is placed in said first clamping slot, and the other one of said pair of contact parts is placed in said second clamping slot; a first linkage gear, which is coaxial with said driving shaft and fixedly connected to one end of said driving shaft; wherein said first linkage gear is located at one side of said mounting surface; and a second linkage gear, which is coaxial with said driven shaft and fixedly connected to one end of said driven shaft; wherein said second linkage gear is located at one side of said mounting surface and engages with said first linkage gear; wherein when said driving shaft rotates, said driven shaft can be driven to rotate through said second linkage gear, and each pair of said contact parts can be driven to rotate to realize closing and opening of said disconnecting switch.