PROBLEM TO BE SOLVED: To provide an eating habit management device which allows a user to confirm surely, an eating habit of the user, and contributes to improvement of the eating habit.SOLUTION: An eating habit management device 100b comprises: an eating habit information transmission part; and an eating habit information processing part. The eating habit information transmission part is installed on an ingesta support tool for supporting an ingesta. The ingesta support tool comprises at least one of a tray 104 for receiving and supporting an ingesta, a container 105 for beverage, and a coaster which is disposed under the container for beverage. Detection means of the eating habit information transmission part installed on the ingesta support tool contains a load sensor 151 for detecting a mass of the ingesta, as ingesta information. The eating habit information processing part outputs a message for indicating a fact that, reduction speed of the ingesta is fast, when speed of reduction of the mass of the ingesta supported by the ingesta support tool is faster than preset prescribed speed, based on detection information of the load sensor 151 installed on the ingesta support tool.SELECTED DRAWING: Figure 13