PROBLEM TO BE SOLVED: To provide an eye lotion application motion detection device and a method thereof for managing usage of an eye lotion efficiently and economically.SOLUTION: An eye lotion application motion detection device 70 for monitoring an application motion of an eye lotion 40 includes a sensor part 10 attached to an eye lotion container 50 which includes a motion sensor 101 for detecting the movement of the eye lotion container 50, a storage part 250 for recording a sensor signal 112 output from the motion sensor 101 in a time-series manner, and a processing terminal part 20 including a determination means for detecting the eye lotion application motion by a change in the sensor signal 112 recorded in a time-series manner.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT