The invention relates to a movable arc contact disassembly and assembly tool. The movable arc contact disassembly and assembly tool comprises an insertion shaft and a sheath, wherein the insertion shaft is provided with an insertion segment and a screwing segment, more than two clamping plates are fixedly arranged at the insertion segment of the insertion shaft, panels of the clamping plates extend along a radial direction of the insertion segment, the length direction is consistent with an axial direction of the insertion segment, each clamping plate extends into a corresponding split groovewhen the insertion segment is inserted into a movable arc contact, the sheath sleeves the insertion shaft, an annular space between the sheath and the insertion segment is partitioned by each clampingplate, a space partitioned by the partition plate is used for accommodating a petal-shaped touch finger when the insertion segment extends into the movable arc contact, and an inner wall surface of the sheath is used for blocking the petal-shaped touch finger in a radial direction. When the insertion segment extends into the movable arc contact, the petal-shaped touch finger of the movable arc contact enters the annular space, the clamping plate extends into the split groove and is in stop matching with the petal-shaped touch finger, the movable arc contact can be driven to rotate by screwingthe insertion shaft, and the petal-shaped touch finger is limited in the annular space between the sheath and the insertion shaft in the radial direction and is difficult to deform.