Heat preservation type sow insemination device

The utility model discloses a heat preservation type sow semen deposition device which comprises a semen deposition bag and a semen deposition pipe connected with the semen deposition bag, one end of the semen deposition pipe is communicated with the semen deposition bag, the other end of the semen deposition pipe is provided with a sealing cap, and the semen deposition bag is of a three-layer structure and sequentially comprises an inner container layer, a heat preservation layer and an outer packaging layer from inside to outside. The periphery of the end, connected with the insemination bag, of the insemination tube is wrapped with a layer of heat preservation sleeve, and a sleeve is fixed outside the heat preservation sleeve. After sperms are put into the semen deposition bag, the heat preservation layer can isolate the temperature difference between the sperms and air, so that the sperm motility and motility rate are kept at a high level, and the conditions that the sperm quality is damaged and the healt