A digital inkjet dyeing machine, configured to perform digital dyeing of solid color on a fabric, and comprising an unwinding and feeding device , an inkjet device , a drying device , and a winding device which are sequentially arranged in a fabric feeding direction, wherein the inkjet device comprises a machine body , a controller , an ink tank , a cleaning liquid tank , and inkjet modules ; the machine body is provided with at least two groups of the inkjet modules , at least one ink tank , and at least one cleaning liquid tank , wherein the ink tank is a container for containing ink, and the cleaning liquid tank is a container for containing cleaning liquid; the machine body is provided with a working area and a cleaning area ; the inkjet modules are installed on the machine body and are displaceable between the working area and the cleaning area ; each of the inkjet module comprises spray heads , a positioning frame , and a supporting and moving mechanism , wherein the spray heads are arranged in parallel and form a spray head group, each inkjet module comprises at least one spray head group, the spray heads are connected through ink pipelines , the ink pipelines are connected to the ink tank and the cleaning liquid tank through pipelines, an inkjet valve is arranged on a pipeline between the ink pipeline and the ink tank , and a cleaning valve is arranged on a pipeline between the ink pipeline and the cleaning liquid tank ; and wherein the spray heads are installed on the positioning frame , the positioning frame is installed on the supporting and moving mechanism , and the supporting and moving mechanism comprises a lifting unit configured to drive the positioning frame up and down in the working area , and a translation unit configured to drive the positioning frame to horizontally translate in the cleaning area . the inkjet device comprises a machine body , a controller , an ink tank , a cleaning liquid tank , and inkjet modules ; the machine body is provided with at least two groups of the inkjet modules , at least one ink tank , and at least one cleaning liquid tank , wherein the ink tank is a container for containing ink, and the cleaning liquid tank is a container for containing cleaning liquid; the machine body is provided with a working area and a cleaning area ; the inkjet modules are installed on the machine body and are displaceable between the working area and the cleaning area ; each of the inkjet module comprises spray heads , a positioning frame , and a supporting and moving mechanism , wherein the spray heads are arranged in parallel and form a spray head group, each inkjet module comprises at least one spray head group, the spray heads are connected through ink pipelines , the ink pipelines are connected to the ink tank and the cleaning liquid tank through pipelines, an inkjet valve is arranged on a pipeline between the ink pipeline and the ink tank , and a cleaning valve is arranged on a pipeline between the ink pipeline and the cleaning liquid tank ; and wherein the spray heads are installed on the positioning frame , the positioning frame is installed on the supporting and moving mechanism , and the supporting and moving mechanism comprises a lifting unit configured to drive the positioning frame up and down in the working area , and a translation unit configured to drive the positioning frame to horizontally translate in the cleaning area . <EOS>