Using the theory of finance mathematic and under the situation of random interest, in this paper, we discuss the proceeds or loss of loaner for giving back loan forward, and the risk of it.

• 并根据金融数学的理论，在随机市场利率的条件下，研究了提前还贷对贷款人或债权人的收益或损失，以及这些收益或损失的风险额度。