The invention discloses a preparation technology and preparation equipment for high-
imitation cotton porous superfine profiled 
polyester fiber. The technological flow is as follows: 
polyester chips are dried, the dried 
polyester chips are placed in an 
extrusion device, polyhydric 
alcohol is added in an online manner to carry out blending modification, and then melt is obtained; the melt is filtered and enters a 
spinning manifold, the filtered melt is subjected to section superfine 
processing and section profiled 
processing, the melt is extruded by a profiled 
spinning plate, and then melt 
trickle is obtained; circular blowing cooling solidification forming is then carried out, and then filaments are obtained; and then the filaments are wound and formed sequentially through oiling by an oil 
nozzle, pretangle and 
heat setting. The preparation equipment comprises a 
drying device, an 
extrusion device, a filter device, the 
spinning manifold, a circular blowing cooling solidifying device and a winding forming device, which are connected in sequence, wherein the 
extrusion device is connected with an online adding device. The preparation technology and the preparation equipment have the characteristics of 
moisture absorption, breathability, anti-
static electricity, pilling resistance, softness and bulkiness, soft gloss, 
moisture wicking and discharging, soft touch sense, better surface coverage and bending resilience, and also can realize a high-
imitation cotton effect.