A portable electronic device, an operating method for the same, and a non-transitory computer readable recording medium are provided. The portable electronic device includes a body and an edge sensor disposed adjacent to an edge of the body. The operating method includes the following step. When a plugging-in event or a plugging-out event of a peripheral device is detected by the portable electronic device, a squeezing event sensed by the edge sensor is ignored. The squeezing event may be generated when a squeeze action sensed by the edge sensor occurs during a first time period. The plugging-in event or the plugging-out event may occur during the first time period. Alternatively, the squeeze action may begin within a second time period after the plugging-in event or the plugging-out event occurs.