A method for sending information on an item, the method comprising: acquiring an inside image of a storage chamber of a storage box; acquiring information on an item stored in the storage box according to the acquired inside image of the storage chamber of the storage box, the information on the item including at least description information of the item; and sending the information on the item to a user; wherein, the method comprises acquiring state information of the storage box, the state information comprising at least one of temperature, humidity and bacteria density of the storage chamber of the storage box; the information on the item further comprises freshness of the item; and the acquiring of the information on the item stored in the storage box further comprises: acquiring freshness of the item stored in the storage box for the first time, the first time is a time when the item is put into a refrigerator or a time when the freshness of the item is calculated latest; and calculating freshness of the item according to current time, the state information, the first time and the freshness of the item for the first time; the method being characterized in that the information on the item is sent to a mobile terminal corresponding to the user; and in that the step of calculating freshness of the item comprises: calculating the freshness of the item according to the following formula: X = X 0 − t 1 − t 0 T ∗ A ∗ B ∗ T 1 T 0 T c ∗ H 1 H 0 H c ∗ P 1 P 0 P c where, X is the freshness of the item, X 0 is the freshness of the item for the first time, t 1 is the current time, t 0 is the first time, T is a length of an attenuation cycle, A is a freshness attenuation standard value in an attenuation cycle, B is an item attenuation coefficient, T 1 is a temperature of the storage chamber for storing the item, T 0 is an empirical temperature, T C is a temperature coefficient, H 1 is a humidity of the storage chamber for storing the item, H 0 is an empirical humidity, H C is a humidity coefficient, P 1 is a bacteria density of the storage chamber for storing the item, and P 0 is an empirical bacteria density, and P C is a bacteria density coefficient. acquiring an inside image of a storage chamber of a storage box; acquiring information on an item stored in the storage box according to the acquired inside image of the storage chamber of the storage box, the information on the item including at least description information of the item; and sending the information on the item to a user; wherein, the method comprises acquiring state information of the storage box, the state information comprising at least one of temperature, humidity and bacteria density of the storage chamber of the storage box; the information on the item further comprises freshness of the item; and the acquiring of the information on the item stored in the storage box further comprises: acquiring freshness of the item stored in the storage box for the first time, the first time is a time when the item is put into a refrigerator or a time when the freshness of the item is calculated latest; and calculating freshness of the item according to current time, the state information, the first time and the freshness of the item for the first time; the method being characterized in that the information on the item is sent to a mobile terminal corresponding to the user; and in that the step of calculating freshness of the item comprises: acquiring freshness of the item stored in the storage box for the first time, the first time is a time when the item is put into a refrigerator or a time when the freshness of the item is calculated latest; and calculating freshness of the item according to current time, the state information, the first time and the freshness of the item for the first time; the method being characterized in that the information on the item is sent to a mobile terminal corresponding to the user; and in that the step of calculating freshness of the item comprises: calculating the freshness of the item according to the following formula: X = X 0 − t 1 − t 0 T ∗ A ∗ B ∗ T 1 T 0 T c ∗ H 1 H 0 H c ∗ P 1 P 0 P c where, X is the freshness of the item, X 0 is the freshness of the item for the first time, t 1 is the current time, t 0 is the first time, T is a length of an attenuation cycle, A is a freshness attenuation standard value in an attenuation cycle, B is an item attenuation coefficient, T 1 is a temperature of the storage chamber for storing the item, T 0 is an empirical temperature, T C is a temperature coefficient, H 1 is a humidity of the storage chamber for storing the item, H 0 is an empirical humidity, H C is a humidity coefficient, P 1 is a bacteria density of the storage chamber for storing the item, and P 0 is an empirical bacteria density, and P C is a bacteria density coefficient.