The disclosure provides a transmissive light based tremor identification system thereof. The system is configured for: projecting, with a transmissive light, a first optical pattern to a part to be measured, wherein the transmissive light penetrates a surface of the part to be measured and forms a second optical pattern on an internal structure of the part to be measured, and the second optical pattern is synthesized to include at least one intersection； capturing a plurality of images of the second optical pattern on the internal structure of the part to be measured, and acquiring a motion feature of each intersection based on the images； and identifying a tremor pattern of the internal structure of the part to be measured based on the motion feature of each intersection.本新型提供一種抖動辨識系統。所述系統經配置以包括：以穿透式光線投影第一光學圖樣至一待測部位，其中該穿透式光線穿透該待測部位的表面並在待測部位的內部結構上相應地形成第二光學圖樣，且第二光學圖樣經合成以包括至少一交叉點；對待測部位的內部結構上的第二光學圖樣拍攝多個影像，並基於前述影像取得各交叉點的一動態特徵；以及基於各交叉點的動態特徵辨識待測部位的內部結構的一抖動態樣。
