The utility model discloses a
solar cell IV testing device which comprises a detection
machine body, the top of the detection
machine body is provided with a line pressing component, the line pressing component comprises a movable sleeve and a fixed plate, the movable sleeve is connected to the top of the detection
machine body in a penetrating mode, the bottom of the movable sleeve is provided with a stretching part, and the top of the fixed plate is provided with a pressing plate. A locking sleeve is arranged on the outer side of the inserting rod and located at the bottom of the pressing plate, the locking sleeve is connected to the top of the movable sleeve in a penetrating mode, a springback part is arranged on the inner side of the top of the locking sleeve, and inserting blocks are symmetrically arranged on the outer side of the bottom of the inserting rod. A user pulls the
insertion rod and the stretching part to fix the pressing plate and the fixing plate to the top of the detection machine body, and presses the
insertion rod and pulls the pressing plate, so that the locking sleeve is movably fixed in the movable sleeve through the
insertion block, and the pressing plate is separated from the fixing plate, and therefore, the
test line pressing operation is performed, and the
test line is prevented from moving and being damaged. And poor contact is generated at the insertion part of the
test line and the detection machine body.