The invention relates to a primary connection crimping device of a high-voltage current transformer. The primary connection crimping device of the high-voltage current transformer comprises a steering mechanism, a crimping mechanism and a following mechanism, wherein the steering mechanism comprises a rotary air cylinder (111); the crimping mechanism comprises a crimping air cylinder installation plate (21) and a crimping air cylinder (24); a main body of the crimping air cylinder (24) is arranged on the crimping air cylinder installation plate (21); an output shaft of the rotary air cylinder (111) is connected with the crimping air cylinder installation plate (21) through a gear transmission mechanism; the following mechanism comprises an insulating fixing block (31), a conductive copper bar fixing screw (37) and a spiral spring (34); and one end of the insulating fixing block (31) is fixedly connected with an output shaft of the crimping air cylinder (24) and an installation hole (39) is arranged in the other end. Compared with the prior art, the primary connection crimping device has the advantages that the rotating angle of a conductive copper bar is controlled by the steering mechanism, the conductive copper bar approaches a connection end through the crimping mechanism, the conductive copper bar is clung to a connection surface through deformation of the spiral spring, the contact is reliable and the crimping efficiency is high.