PROBLEM TO BE SOLVED: To provide a blood sampling system capable of surely identifying a patient or the like who has performed blood sampling by preventing the patient or blood from being misidentified.SOLUTION: The blood sampling system includes a blood collection tube insertion part for inserting a blood collection tube 2, an IC tag reader 48 for reading information stored in an IC tag 8 arranged in the blood collection tube insertion part and provided in the blood collection tube, and an information readable part 50 arranged in the blood collection tube insertion part to attach information read by the IC tag reader to an outer wall part of the blood collection tube in a readable state.SELECTED DRAWING: Figure 8