Electronic device and operation method of parameter selection thereof

An electronic device and an operation method of parameter selection are provided. According to the method, a first parameter adjustment interface is displayed on a touch display. The first parameter adjustment interface includes an inner circular area and a surrounding area surrounding the inner circular area. The surrounding area closest to the touched first position corresponds to a first parameter value. When the object slides from the first position to a second position of the peripheral region, the touch display is switched to a second parameter adjustment interface The selected area of the second parameter adjustment interface displays the first parameter value. When the object slides from the second position to a third position along the peripheral region, the selected area is switched to display a second parameter value corresponding to the third position.