Due to the lack of the study of the flow inside a droplet placed in vibrating plate, most of the study has been made on a hot thermal plate. This study aims to understand the internal flow characteristics of a droplet under a periodic forced vibration. In order to predict the resonance frequency of a droplet, various approaches were made. High-speed camera and macro lens were used to capture the internal flow characteristics of a droplet on the vibrating hydrophobic surface. The result shows that the internal flow has its mode and the induced vortex was generated in mode 4, 6, and 8. However, the homogeneous size of the vortex was generated in mode 2, whereas the non-uniform vortex occurred in mode 6 and 8. As mode increased, the number of robes increased and the capillary vortex inside the robe was also stimulated.