An electronic device comprising: a sensor module; a display; a processor operatively connected to the sensor module and the display; and a memory storing instructions which, when executed by said processor, configure the processor to: obtain first data related to a first position of a user measuring blood pressure through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module, wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of the electronic device or a distance between the electronic device and the user, is included in a preset range, and when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object (717, 727, 737, 817, 827) indicating a reference position and corresponding to the first position, and a second graph object (715, 725, 735, 815, 825) indicating a current position and corresponding to the second position. a sensor module; a display; a processor operatively connected to the sensor module and the display; and a memory storing instructions which, when executed by said processor, configure the processor to: obtain first data related to a first position of a user measuring blood pressure through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module, wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of obtain first data related to a first position of a user measuring blood pressure through the electronic device, identify a second position of the user measuring the BP, based on second data acquired through the sensor module, wherein each of the first data and the second data includes an inclination of the electronic device, identify whether a difference between the first data and the second data, including a difference in the inclination of the electronic device and a difference in at least one of a height of the electronic device or a distance between the electronic device and the user, is included in a preset range, and when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object (717, 727, 737, 817, 827) indicating a reference position and corresponding to the first position, and a second graph object (715, 725, 735, 815, 825) indicating a current position and corresponding to the second position. when the difference is not included in the range, display a user interface, including guide information for adjusting the second position to become equal to the first position, through the display, wherein the guide information includes a first graph object (717, 727, 737, 817, 827) indicating a reference position and corresponding to the first position, and a second graph object (715, 725, 735, 815, 825) indicating a current position and corresponding to the second position.