An electronic device, comprising: a camera; a display; and a processor, wherein the processor is configured to: obtain a request associated with biometric authentication; based on the request, obtain an image including an external object using the camera, wherein the image comprises a specified area and a non-specified area; identify a state of the electronic device; when the state of the electronic device corresponds to a first state: display a preview image comprising the specified area on the display in conjunction with the biometric authentication, and in response to identifying that the specified area of the image includes a specified biometric object of the external object, perform the biometric authentication using biometric information corresponding to the specific biometric object; and when the state of the electronic device corresponds to a second state: display a non-preview image on the display; and in response to identifying that the image includes the specified biometric object of the external object, perform the biometric authentication using the biometric information corresponding to the specified biometric object wherein the first state is a state where the biometric authentication is used to perform payment, and wherein the second state is a state where the biometric authentication is used to unlock the electronic device. a camera; a display; and a processor, wherein the processor is configured to: obtain a request associated with biometric authentication; based on the request, obtain an image including an external object using the camera, wherein the image comprises a specified area and a non-specified area; identify a state of the electronic device; when the state of the electronic device corresponds to a first state: display a preview image comprising the specified area on the display in conjunction with the biometric authentication, and in response to identifying that the specified area of the image includes a specified biometric object of the external object, perform the biometric authentication using biometric information corresponding to the specific biometric object; and when the state of the electronic device corresponds to a second state: display a non-preview image on the display; and in response to identifying that the image includes the specified biometric object of the external object, perform the biometric authentication using the biometric information corresponding to the specified biometric object wherein the first state is a state where the biometric authentication is used to perform payment, and wherein the second state is a state where the biometric authentication is used to unlock the electronic device. obtain a request associated with biometric authentication; based on the request, obtain an image including an external object using the camera, wherein the image comprises a specified area and a non-specified area; identify a state of the electronic device; when the state of the electronic device corresponds to a first state: display a preview image comprising the specified area on the display in conjunction with the biometric authentication, and in response to identifying that the specified area of the image includes a specified biometric object of the external object, perform the biometric authentication using biometric information corresponding to the specific biometric object; and display a preview image comprising the specified area on the display in conjunction with the biometric authentication, and in response to identifying that the specified area of the image includes a specified biometric object of the external object, perform the biometric authentication using biometric information corresponding to the specific biometric object; and when the state of the electronic device corresponds to a second state: display a non-preview image on the display; and in response to identifying that the image includes the specified biometric object of the external object, perform the biometric authentication using the biometric information corresponding to the specified biometric object display a non-preview image on the display; and in response to identifying that the image includes the specified biometric object of the external object, perform the biometric authentication using the biometric information corresponding to the specified biometric object wherein the first state is a state where the biometric authentication is used to perform payment, and wherein the second state is a state where the biometric authentication is used to unlock the electronic device.