The invention discloses an automatic film rolling and mulching seedbed device capable of double-layer heat preservation. The automatic film rolling and mulching seedbed device capable of double-layerheat preservation comprises a seedbed and two symmetrical roof inclined planes arranged at the top of the seedbed, wherein an upper winding drum and a lower winding drum are arranged at the top of a ridge of the seedbed, a first double-layer soft film is wound around the lower winding drum, one end of the first double-layer soft film is fixed to the surface of the lower winding drum together, andthe other end of the first double-layer soft film is freely lapped and attached to the two roof inclined planes through a corresponding traction counterweight; a second double-layer soft film is woundaround the upper winding drum, one end of the second double-layer soft film is fixed to the surface of the upper winding drum together, the other end of the second double-layer soft film is also freely lapped and attached to the two roof inclined planes through a corresponding traction counterweight, and the second double-layer soft film is located above the first double-layer soft film; the upper winding drum and the lower winding drum are both driven to rotate forwards and backwards by a motor capable of rotating forwards and backwards so as to drive the first soft film and the second softfilm to be folded and unfolded on the two roof inclined planes. The automatic film rolling and mulching seedbed device has the advantages of being compact in structure, economical and practical, goodin heat preservation and constant temperature effect, capable of achieving automatic operation and convenient to adjust.