星团是链接恒星和星系、星系团等大尺度结构的重要纽带。另外，星团恒星常被看作同时形成于星际空间中的同一团气体尘埃。因此，星团成员星之间拥有很多相似性，如：化学组成、距离、年龄等。这使得星团常被用来检验恒星结构演化模型。在星团研究中，星团基本参数——星团总质量、距离、金属丰度、年龄等——的确定是最基本的、也是最重要的。然而，星团年龄更是重中之重。只有准确确定星团年龄，才能对星团演化——生老病死、前世今生——进行研究，才有可能准确了解演化过程中的物理过程。在本项目中，我们结合Kepler卫星的星震学观测和地面LAMOST的光谱观测来研究星团年龄。结合恒星结构演化和恒星震荡理论，将恒星年龄表示成恒星震荡参数——相位参数、周期间隔、大小频率间隔等——的函数。将星团成员星看作一个整体，运用大样本星震学的方法对观测资料进行分析来确定星团年龄、了解星团性质，这充分体现了星团成员星作为一个自然样本的特性。

Cluster is an important link between the stars and the galaxy and other large scale structures, such as the galaxy cluster and the universe. In addition, the stars in a cluster are usually regarded as forming from same dust and/or gas in the interstellar. The member stars of the cluster therefore usually have many common properties, such as same element composition, distance, age. It made that the clusters are usually used to test the theory of stellar structure and evolution and the physical process. Determining the fundamental parameters, such as total mass of cluster, cluster distance, metallicity, age, is the most elementary and important in the processing of cluster investigation. The cluster age is the most important among all of the fundamental parameters. Our understanding of cluster formation, evolution, and the evolutionary physical phenomenon are greatly depend on the determining of cluster ages. In the project, we combine the asteroseismic observations of Kepler and the spectroscopic observations of LAMOST to investigate cluster ages. Combining the theory of stellar structure and evolution and the theory of stellar oscillations, we express the stellar age as a function of stellar oscillation parameters, such as, oscillation phase parameter, period span, large and small frequency separations. And we regard the stars in a cluster as an entirety and use the method of ensemble asteroseismology to analyze the observations to determine the cluster age and other cluster properties. It characterize the property of cluster stars as a natural sample.