Jointing clamp and jointing method thereof

The invention discloses a jointing clamp and a jointing method thereof. The jointing clamp comprises a first jointing head, a slide rail and a second jointing head. The first jointing head is arrangedat one end of the sliding rail; the second jointing head is movably arranged on the sliding rail in a penetrating mode, the jointing clamp has a locking state and an unlocking state, in the locking state, a first elastic piece enables the first blocking piece to deviate by a preset distance, and then a first locking through hole and the sliding rail are fixed in a friction intersection mode, so that the first clamping body and the second clamping body conduct forward clamping or reverse expansion jointing. In the unlocking state, a first handle acts to enable the first blocking piece to swingby a preset distance, so that the axial direction of the first locking through hole is consistent with the length direction of the sliding rail, and the position of the second clamping body on the sliding rail is conveniently