Comercial nigociation ia an essential ecnomic activity for the 2 parts to make all conditins relative to their deal through nigociation. Helpful to reach an ahreement, it is very important in the nigoniation.It can help to adjust each other's interest, reduce the disagreement, and finally make out their common interest.But bad nigociation may raise disagreemnet and cause the failure of the deal.The proceess of nigociation is a process of two parts' communication, mostly of conversition. Conversition ,like a bridge, is so important that it determines the result of the nigociation.That requires us to master some conversition art in addition to using proper words and speaking clearly,fluently. Conversition art with the features of elegence, liveliness, loveliness and affectiveness, plays an immeasurable part in nigobniation.