The utility model discloses a transformer bushing end screen insulation test divide accuse device, divide accuse electrode module and insulation resistance meter including the transformer, the transformer divides accuse electrode module to include the frame, fixes a plurality of on the frame decides contact, slip table and the actuating mechanism that drive slip table reciprocating motion of configuration in the frame that slide, is provided with three moving contact on the slip table, during the test, first moving contact, third moving contact pass through wire ground connection, and the second moving contact passes through the wire with L terminal among the insulation resistance meter to be connected, and E terminal among the insulation resistance meter passes through wire ground connection, a plurality ofly decide the contact and are connected with bushing tap in the examination transformer that awaits measuring through the wire respectively, pass through actuating mechanism duringthe test and remove the slip table, make that three moving contact on the slip table is different respectively decides contact conductive contact. The utility model discloses can save tester's the line changing time (on average 10 minutes are spent to the line changing at every turn), can once work a telephone switchboard and realize that all bushing tap of transformer are experimental to the insulation resistance on ground.