Abstract: A clamping and connecting structure for a track light includes a track unit and a clamping unit. The track unit consists of a track with two grooves each of which receives a packing strip accommodating a lead wire. The clamping unit consists of a clamping sleeve with locking holes at both ends, a pair of clamping pieces each having an upper bent guide strip and a lower through hole, a pair of bent connecting pieces each having an upper through hole and a lower through hole, and a connecting sleeve with insert holes in one side. Screws are used to lock the upper through holes of the connecting pieces and the lower through holes of the clamping pieces to the clamping sleeve such that the guide strips are in contact with the lead wires held by the packing strips of the track. Screws are further used to lock the lower through holes of the connecting pieces to the connecting sleeve, the insert holes of which may receive insert means of a lamp.