為了節約能源，設置智慧電表已越來越普遍，其可用來取代傳統的人工抄表，並提升效率。根據研究指出，若使用者可得知家中每個電器的用電情形，可激勵其自發性節能。然而，有別於侵入式負載監測，非侵入式電器負載監測的方法是先偵測所有電器的總功率消耗，再判斷出是哪些電器被開啟或是關閉，因此，增加了實現地可行性。本文將對現行此領域所發展的方法與架構進行研究探討，俾利發展個低成本且可行的非侵入式電器負載監測系統。

To save energy, set the Smart Meters have become increasingly common, can be used to replace the traditional manual meter reading and improve efficiency. According to the study, if the user can be informed that the electricity consumption of each appliance at home, can trigger consumer spontaneous energy saving. However, unlike intrusive load monitoring, non-invasive method of electrical load monitoring is to detect the total power consumption of all electrical appliances, and then determine which appliances are turned on or off, thus increasing the implementation possibilities. Explore the research method and structure of the current development in this field can be to facilitate the development of a low-cost and viable non-intrusive load monitoring system.