Variable frequency air conditioner and control method thereof

The invention provides a control method of a variable-frequency air conditioner. The control method comprises the steps that a starting signal of the variable-frequency air conditioner is obtained; whether the indoor environment temperature adjusted by the frequency conversion air conditioner reaches the set temperature or not is judged; if yes, the real-time frequency of the variable-frequency air conditioner is obtained, and the electricity saving amount when the variable-frequency air conditioner operates at the real-time frequency is calculated; and power saving is output. By means of the method, the variable-frequency air conditioner can visually display the electricity saving quantity in the operation process, a user can feel the electricity saving condition of the variable-frequency air conditioner in real time, understanding and cognition of the performance of the variable-frequency air conditioner are enhanced, and the user can conveniently adjust the variable-frequency air conditioner to the better