A covering system for crops comprising a covering element (2 102) capable of being disposed in a first unfolded position and in a second folded position wherein a first band (3 103) and a second band (4 104) of said covering element (2 102) are closer one to the other to collect in a limited space the intermediate portion (5) of said covering element (2 102). The covering system comprises a substantially filiform element (10 110) arranged as a line that alternately connects a plurality of first portions (11 111) of the first band (3 103) with a plurality of second portions (12 112) of the second band (4 104), the traction of one end (14) of the filiform element (10 110) causing the approach of the second band (4 104) to the first band (3 103) so as to collect between them the intermediate portion (5).