The influence of the loss aversion is discussed on the suppliers’ production quantity and the players’ profits in the consignment contract. Furthermore, the players’ profits are analyzed considering the supplier’s loss aversion in the two situations: symmetric risk preference information and asymmetric risk preference information. It shows that the player’s profits are decreasing with the loss aversion level and the players’ profits in the symmetric information are higher than that in asymmetric information. The information value can be obtained for the retailer. Finally, how to reveal the supplier’s loss aversion is presented based on the signal game. The separating equilibrium and pooling equilibrium are worked out to provide the guidance for the supplier.