The invention discloses an automation detection line mutual inductor rod penetrating mechanism for low-voltage current mutual inductors. The automation detection line mutual inductor rod penetrating mechanism comprises a test table. A plurality of sets of clamping mechanisms capable of clamping the same current rising rod are arranged on the test table. Each set of clamping mechanism is provided with a driving mechanism and a clamping jaw, wherein the driving mechanism drives the corresponding clamping mechanism to move, and the clamping jaw can start and close the clamping of the current rising rod. A plurality of sets of mutual inductors are arranged on the current rising rod in a penetrating mode. When the sets of mutual inductors are arranged on the current rising rod in the penetrating mode and sequentially move at a plurality of test stations along the current rising rod or move down from the current rising rod, the sets of clamping mechanisms clamping the current rising rod are matched with switching motions and avoid movement of the mutual inductors. According to the mutual inductor rod penetrating mechanism, one current rising rod is used for being suitable for the mutual inductors with various transformation ratios, the current rising rod is placed on the test table, the floor area is reduced, the mechanism is simple and has more economic benefits, and meanwhile the external dimension of the test table is more compact; due to the facts that the different clamping and lifting modes are adopted, and a self-adaptation vertically-adjustable wiring mechanism is adopted, the problem of center deviation of the mutual inductors with different heights is solved.