Device and method for preparing test tubes

The invention discloses a device and a method for preparing test tubes. The device is divided into an upper area, a middle area and a lower area as a whole, comprises a label adhesion mechanism on an upper part, a test tube recovery mechanism on a middle part and a test tube storage mechanism on a lower part, and has the functions of automatically conveying the test tubes, adhering labels, and recovering the test tubes, wherein the test tubes adhered with the labels fall onto the middle part from the upper part, and are stored in trays of the test tube recovery mechanism on the middle part; the test tube of one patient is stored in each tray, thus avoiding disorder of the test tubes; meanwhile, and the trays are located on the middle part of the device for preparing the test tubes, and proper in heights; and moreover, the device for preparing the test tubes is narrow, occupies less space, and has a small gap with a blood sampling working platform, thus facilitating blood sampling personnel to take the trays and facilitating operations.