A system for determining pet health status based on monitored pet explicit information and a method thereof are provided. By monitoring diet situation, activity situation, mental situation and temperature situation of a pet, collecting pet excreta when determining the pet is abnormal based on monitored information, and using detection reagents to detect the pet excreta for generating a result, the system and the method can use detection reagents to confirm pet is normal or not as soon as possible, and can achieve the effect of detecting pet health status immediately.一種監測寵物外顯訊息以判斷寵物健康狀態之系統及其方法,其透過依據所監測到之寵物的飲食狀況、活動狀況、精神狀況、及體溫狀況判斷寵物異常時,收集寵物之排泄物,並使用檢測試劑檢測寵物之排泄物以產生檢測結果之技術手段,可以及早使用檢測試劑確認寵物是否異常,並達成可即時檢測寵物健康狀態之的技術功效。步驟210‧‧‧監測寵物之飲食狀況、活動狀況、精神狀況、及體溫狀況步驟220‧‧‧依據飲食狀況、活動狀況、精神狀況、及體溫狀況判斷寵物是否異常步驟250‧‧‧收集寵物之排泄物步驟260‧‧‧使用檢測試劑檢測寵物之排泄物,並產生檢測結果