An electronic device including a camera assembly, a storage, and a processor is disclosed. The camera assembly includes a first camera unit and a second camera unit. The processor is configured to obtain an ISO value of the camera assembly when the camera assembly is activated and determine whether the ISO value is greater than or equal to a first preset value. The processor is also configured to control, when the ISO value is greater than or equal to the first preset value, the first camera unit and the second camera unit to separately capture a first image and a second image, respectively, fuse the first image and the second image to generate a third image, and store the third image in the storage. An image capture control method implemented in the electronic device is also disclosed.