中文摘要：

在20世纪末到21世纪初的十多年里，生命科学，特别是分子生物学发生了令世人瞩目的变化．生命科学研究飞速发展使人们相信21世纪是生命科学的世纪．与此同时，人们也越来越清楚地意识到生命科学研究的质的飞跃不可能由生物学家独立完成．数学、物理、化学、力学、信息科学在生物学研究中必将担任越来越重要的角色．文章通过介绍几个作者参与的系统生物学研究工作，探讨物理学在系统生物学中应该并能担任的角色．

英文摘要：

In the last decade between 20th and 21st century, life sciences, especially molecular biology have witnessed a dramatic change. As a result, it is generally believed that the 21 century is the century of life science. At the same time, it was realized that the leap forward in life sciences cannot be accomplished by biologists alone. Mathematics, physics, chemistry, mechanics, information science were all needed in this process. In this article, we use a few examples of our works to elaborate the physics role in life science researches.