The uncultivated，abandoned land plagues the red line for minimum arable land and food security. There is an indisputable fact that excessive land development declines soil fertility and damages environment. On the premise of food security, fallow is an efficient way to organically combine uncultivated, abandoned and increased plough with reforestation, land consolidation to recover soil fertility and repair environment. Inheriting fine fallow tradition in our country and learning the fallow experience in Europe and US, this study constructs a translation mechanism among uncultivated，abandoned, idle land, reforestation, increased plough and fallow in combination of planning and marketing means, in which by planning means fallow should be brought into territorial planning, and fallow should be marketized by marketing means of reforestation compensation, uncultivated, idle land compensation and land resumption.