A kind of urn structure include a urn can ontology,One maintains material and an arrangement for detecting,The inside of the urn can ontology one of has an accommodating space and communicates with the accommodating space storage space,The accommodating space for accommodate bone ash,The maintenance material is set in the what storage space,For make to maintain in the accommodating space avoid the bone ash occur it is rotten,Ambient condition that is mouldy or generating peculiar smell,The arrangement for detecting is located on the urn can ontology,The ambient condition in the accommodating space can be detected and see the outer as the result is shown of detecting for people； Make it that can show the state of the accommodating space of inside outside what urn can by above structure system,To remind the maintenance material inside manager's instantaneously changing,And then can prevent the bone ash generation in accommodating space from going bad,Situation person that is mouldy or generating peculiar smell.一種骨灰罐結構包括一骨灰罐本體、一維持材料及一偵測裝置，該骨灰罐本體的內部具一容置空間及與該容置空間相通之一收納空間，該容置空間可供容納骨灰，該維持材料設於該收納空間中，可供使該容置空間中維持在避免該骨灰發生變質、發霉或產生異味的環境狀態，該偵測裝置設在該骨灰罐本體上，可偵測該容置空間中的環境狀態及將偵測的結果顯示外供人看到；藉由上述結構係使其可於該骨灰罐外顯示出內部之容置空間的狀態，用以提醒管理者即時更換內部的維持材料，進而可防止容置空間中的骨灰發生變質、發霉或產生異味之情形者。
