A refrigerator, comprising: a refrigerator body internally defining a storage space for storing articles; a door connected to the refrigerator body and used for opening and/or closing the storage space; and a microfluidic detection system which is provided on the door and comprises a microfluidic biochip having a sample inlet, a communication port, and a detection poc formed in the microfluidic biochip, the sample inlet, the detection pool, and the communication port being communicated in sequence by means of a microfluidic channel to allow a sample fluid in contact with the sample inlet to enter the microfluidic channel and flow into the detection pool by means of the microfluidic channel; and a detection mechanism used for detecting the detection pool to obtain a preset detection parameter of the sample fluid, wherein the detection pool is provided therein with a detection reagent in advance, or the detection reagent is manually or automatically added to the detection pool, such that the detection mechanism detects the detection pool after the sample fluid in the detection pool reacts with the detection reagent therein, wherein the microfluidic detection system further comprises: a sample stage for placing a sample cup, the sample cup being used for containing the sample fluid; and a housing provided with an operation stage opened towards the front side thereof, the sample stage being at least partially located in the operation stage, wherein a hollowed window is formed in the front side of the door, and the operation stage is exposed on the front side of the door through the hollowed window, wherein the microfluidic detection system further comprises: a sample fluid driving device in sealed communication with the communication port to impel the sample fluid in contact with the sample inlet to flow into the microfluidic channel and flow to the detection pool by means of the microfluidic channel. a refrigerator body internally defining a storage space for storing articles; a door connected to the refrigerator body and used for opening and/or closing the storage space; and a microfluidic detection system which is provided on the door and comprises a microfluidic biochip having a sample inlet, a communication port, and a detection poc formed in the microfluidic biochip, the sample inlet, the detection pool, and the communication port being communicated in sequence by means of a microfluidic channel to allow a sample fluid in contact with the sample inlet to enter the microfluidic channel and flow into the detection pool by means of the microfluidic channel; and a detection mechanism used for detecting the detection pool to obtain a preset detection parameter of the sample fluid, wherein the detection pool is provided therein with a detection reagent in advance, or the detection reagent is manually or automatically added to the detection pool, such that the detection mechanism detects the detection pool after the sample fluid in the detection pool reacts with the detection reagent therein, wherein the microfluidic detection system further comprises: a sample stage for placing a sample cup, the sample cup being used for containing the sample fluid; and a housing provided with an operation stage opened towards the front side thereof, the sample stage being at least partially located in the operation stage, wherein a hollowed window is formed in the front side of the door, and the operation stage is exposed on the front side of the door through the hollowed window, wherein the microfluidic detection system further comprises: a sample fluid driving device in sealed communication with the communication port to impel the sample fluid in contact with the sample inlet to flow into the microfluidic channel and flow to the detection pool by means of the microfluidic channel. a sample stage for placing a sample cup, the sample cup being used for containing the sample fluid; and a housing provided with an operation stage opened towards the front side thereof, the sample stage being at least partially located in the operation stage, wherein a hollowed window is formed in the front side of the door, and the operation stage is exposed on the front side of the door through the hollowed window, wherein the microfluidic detection system further comprises: a sample fluid driving device in sealed communication with the communication port to impel the sample fluid in contact with the sample inlet to flow into the microfluidic channel and flow to the detection pool by means of the microfluidic channel.