Anhydrous digital printing method

The invention relates to the technical field of fabric printing, in particular to a waterless digital printing method which comprises the following steps: a visual analysis unit scans and detects a to-be-printed surface of a target fabric and determines a first type of hydrophilic detection point and a second type of hydrophilic detection point of the target fabric according to a weaving thread type; carrying out primary hydrophilic detection on the first type of hydrophilic detection points and the second type of hydrophilic detection points, and calculating hydrophilic degree stability parameters; determining a fabric preheating mode according to the hydrophilic degree stable parameter, wherein the fabric preheating mode comprises differential temperature preheating and uniform temperature preheating; after preheating is completed, the digital printing unit conducts digital ink-jet printing on the target fabric; drying and curing, namely heating and curing the printed target fabric in a drying chamber; the