The representatives of 23 industrial clusters are requested to provide their opinions on the length of each life cycle period. Almost 97% agree that the cluster life cycle should be classified into four stages: initial,developing,mature,and transformation. These four stages should take an average of 19.14 years (Table1). However,the development periods of each industrial sector are different, especially for the mature and transformation stages. The service cluster requires the longest life cycle length of 28 years in total. Agricultural industrial clusters need longer periods of time in the transformation stage since the members mostly apply their local wisdom to the production process, even if they invent new innovations,but they mainly rely on traditional based production and management. This reflects that there is still plenty of room for dramatic changes in various areas such as marketing,technology,and management.