The invention relates to a desert
greening soil module, and a preparation and construction method thereof. The soil module preparation method comprises the following steps: step 1, respectively preparing components according to weight ratios, wherein the components comprise 70-80% of soil (soil for use), 7-15% of an
organic fertilizer, 0.5-2% of a soil micro-state
active agent, 0.2-1.5% of a soilwater-retaining agent and 9-18.5% of water; step 2, uniformly stirring the components prepared in the step 1, adding water, then carrying out mixing to obtain
mortar, carrying out mixing by stirring according to a
soil water content ratio of 13-18.5%; step 3, putting the
mortar into a mould, and pressing the
mortar to form a soil module, wherein a column-shaped body is arranged in the mould, and avertically upward guide
pipe hole is formed in the bottom of the soil module when the soil module is formed by pressing; and step 4, preparing a biodegradable conduit, and adding a rooting agent intothe conduit, wherein the rooting agent is a mixture of a
soil water-retaining agent and rooting
powder.