An electronic reading apparatus and controlling method thereof is provided. The electronic reading apparatus includes a display unit, a storage unit storing electronic files, a controlling unit and an input unit. The input unit is configured to generate an input signal in response to user inputs. The controlling unit is configured to define whether the input signal is a reading mode signal. If so, the controlling unit controls the electronic reading apparatus to enter the reading mode, and executes tasks according to user inputs. The controlling unit further records the continuous operating time of the electronic reading apparatus, and executes a protect command corresponding to the length of the continuous operating time.一種電子閱讀裝置及其控制方法,該電子閱讀裝置包括顯示單元、存儲單元、控制單元及輸入單元,存儲單元存儲閱讀檔。該輸入單元用於回應用戶輸入操作產生輸入信號,控制單元用於判斷該輸入信號是否為閱讀模式信號,若是,則控制電子閱讀裝置進入閱讀模式,根據選擇操作讀取閱讀檔,並記錄電子閱讀裝置連續工作的時間,進一步根據該連續工作的時間所在範圍,執行相應的保護命令。
