The invention provides a color paste and slice blend spinning device. The color paste and slice blend spinning device comprises a slice drying tank, a screw-rod extruder and a slice conveying pipeline, wherein the screw-rod extruder is located below the slice drying tank; the slice conveying pipeline is connected between a slice drying tank bottom discharging hole of the slice drying tank and a screw-rod extruder feeding hole of the screw-rod extruder; a melt filter feeding hole is connected with a screw-rod extruder discharging hole; a melt filter discharging hole is connected with a distributor feeding hole of a melt pipeline distributor; a distributor discharging hole of the melt pipeline distributor is connected with a melt metering pump feeding hole; a melt metering pump discharging hole is connected with a spinning assembly. The color paste and slice blend spinning device is characterized by further comprising a pipeline type slice stirring device and a color paste stirring and extruding device, wherein the pipeline type slice stirring device is arranged on a pipeline of the slice conveying pipeline; and the color paste stirring and extruding device is arranged at a position above the pipeline type slice stirring device and is connected with the slice conveying pipeline. By adopting the color paste and slice blend spinning device, the disadvantage in the prior art that the quality of color filaments is influenced by color master batch or color powder is eliminated; and the production efficiency is improved.