PROBLEM TO BE SOLVED: To provide a food intake determination method and a device capable of automatically and accurately measuring and recording a meal intake amount and an intake time with a simple device. A processing function for measuring a load from a bed 10 on which a person under management P is placed, load sensors 14a, 14b, 14c, 14d provided on the bed 10, and outputs of load sensors 14a, 14b, 14c, 14d. 20 is provided with the processing device 20 having the above. The processing device 20 obtains the bed load in the first period of the load applied to the bed 10 when the managed person P ingests a meal from the tableware 18. Within the second period consisting of a plurality of consecutive first periods, the measurement processing load is calculated, and the difference between the measurement processing loads before and after the third period is continuously obtained. The number of times the difference between the obtained measurement processing loads is greater than or equal to a predetermined value and the number of times is less than or equal to a predetermined value within the fourth period is determined. When the number of times that is equal to or greater than the predetermined number is equal to or greater than the predetermined number of times, it is assumed that it is a meal time, and the total of the fourth period is defined as the meal intake period. [Selection diagram] Fig. 1【課題】簡単な装置で、食事の摂取量や摂取時間を自動的に正確に測定して記録可能な摂食判定方法と装置を提供する。【解決手段】被管理者Ｐが載ったベッド１０と、ベッド１０に設けられた荷重センサ１４ａ，１４ｂ，１４ｃ，１４ｄと、荷重センサ１４ａ，１４ｂ，１４ｃ，１４ｄの出力から荷重を測定する処理機能を有した処理装置２０とを備える。処理装置２０は、食器１８から被管理者Ｐが食事を摂取する際に、ベッド１０にかかる荷重の第１の期間のベッド荷重を求める。連続する複数の第１の期間から成る第２の期間内において、計測処理荷重を算出し、第３の期間をおいた前後における計測処理荷重の差を、連続して求める。求めた計測処理荷重の差が、第４の期間内において、所定の値以上である回数と所定の値以下である回数を求める。所定の値以上である回数が、所定回数以上である場合に、食事時間であるとして、第４の期間の合計を食事摂取期間とする。【選択図】図１
