[Problem] To provide a system which can simplify operations at the time of diagnosis at the store, which enables even a beginner to diagnose a customers skin condition, thereby achieving higher precision diagnostic results. [Solving means] A data collection system 1 is connected to a data analysis system 11 that carries out analysis processing based on data collected by the data collection system 1 via communication means. The data collection system 1 includes collection-side communication means 7, image capturing means 2 for capturing an ultra-high resolution digital image that allows an analysis of a skin texture condition, collection-side image data compression means 6 for compressing image data by a high compression method with block noises suppressed, and collection-side data display means 3. The data analysis system 11 includes analysis side communication means 12, data analysis means 13 for analyzing image data, and analysis-side data compression means 13 for compressing the data by a high compression method with block noises suppressed.