Fabrication of colloidal cluster has great potential to make photonic crystal which has a large photonic band-gap and distinctive optical property. Various fabrication methods have been tried, however so far, it is not easy to achieve mass production of colloidal cluster. In this study, Using depletion interaction between anisotropic colloid particle called Pacman particle and simple sphere particle, we suggest a method for fabrication of flexible colloidal cluster with great productivity.