Provided is a tablet printing device and a tablet printing method, which can be used to print information on the side where no cutting line is formed when the tablets formed with a cutting line on one side are transported in a random state on the front and back sides. Simplify. The tablet printing apparatus (1) according to the embodiment includes: an imaging device (23) that photographs the side surface of the tablet (T) on which a cut line is formed on one side； and a transport device (21) that transports the tablet (T)； The print head device (24), which prints information on the tablets (T) transported through the transport device (21)； and the control device (50), which specifies the cutting line based on the image obtained through the camera device (23) The angle, using a specific angle, generates printing data for printing information in accordance with the cutting line, and uses the generated printing data to control the print head device (24).提供一種藥片印刷裝置及藥片印刷方法，其係在單面形成割線的藥片在表背面隨機的狀態下搬運的情況下，可以在沒有形成割線的面配合割線印刷資訊，更進一步，可以實現裝置的簡略化。有關實施方式的藥片印刷裝置(1)，具備：攝像裝置(23)，其係拍攝在單面形成了割線的藥片(T)的側面；搬運裝置(21)，其係搬運藥片(T)；印刷頭裝置(24)，其係在經由搬運裝置(21)所搬運的藥片(T)印刷資訊；以及控制裝置(50)，其係根據經由攝像裝置(23)所得到的影像，來特定割線的角度，使用特定出的角度，產生用於配合割線而印刷資訊的印刷資料，使用產生出的印刷資料來控制印刷頭裝置(24)。
