Energy, as a strategic resource, is the fundamental lifeline of the national economy and an important material resource for the comprehensive development of society.

　　Energy saving and consumption reduction is of great practical significance for solving the current energy crisis in China.

　　For electric hoist enterprises, reducing energy consumption is also an inevitable requirement to enhance their competitiveness and improve efficiency. With the implementation of the energy law of the People's Republic of China and the commitment made at the Copenhagen Conference to reduce carbon dioxide emissions per unit of GDP by 40% to 45% from 2005, energy conservation has become the focus of social attention. Energy conservation and emission reduction have also been included in the performance evaluation goals of governments at all levels, and corresponding energy-saving indicators have been formulated in various fields. Laws, regulations, standard systems, and regulatory evaluations related to energy conservation have gradually been established and improved.

　　The energy consumption of electric hoists is enormous, so it is necessary to strengthen energy efficiency supervision and energy-saving guidance for the electric hoist industry. Studying the energy efficiency testing methods of electric hoists will provide an effective and reliable basis for energy efficiency testing, energy-saving design, and energy-saving supervision of electric hoists. As a light and small lifting equipment, electric hoist is widely used, has a simple structure, and has a high degree of product serialization. Taking it as the research object to carry out effective research on lifting machinery is a good starting point.

　　In addition, due to the small size of the electric hoist, it can be tested in the laboratory with relatively small investment. Therefore, the energy efficiency test research of the electric hoist also has good feasibility. The energy efficiency evaluation of electric hoists will be a pioneer in the research of energy efficiency evaluation in the field of lifting machinery, and the energy efficiency research of electric hoists will also provide very useful reference for subsequent research on energy efficiency evaluation of other lifting machinery.