This paper studies the pricing and ordering policy of a two-echelon supply chain with a supplier and a retailer. The retailer has accurate demand information while the supplier does not. The research shows that the uncertainty of the supplier on the demand will lead to a reduction of the supplier's expected profit, which also shows the value of information. Moreover, if the supplier overestimates the demand, the actual expected profit will be less than the expected profit he wishes; however, if the supplier underestimates the demand, the actual expected profit will be higher than the expected profit he wishes.