A medical sensor (100), comprising: a mark (110), capable of indicating identity information of the medical sensor (100) and capable of being identified by a specific electronic device a communication part (120), used for receiving initialization parameters matching the identity information from the electronic device and a setting part (130), connected to the communication part (120) and used for completing initialization setting of the medical sensor (100) according to the initialization parameters. The medical sensor (100) is provided with the mark for indicating the identity information of the medical sensor (100), so that an operating device (200) can obtain the identity information through the mark, and then read usage information such as initialization parameters of the medical sensor (100) on the basis of the identity information to automatically complete the initialization setting of the medical sensor (100) a user can conveniently use the medical sensor (100), learning burden and operation complexity can be reduced, and working efficiency is improved.
