A control method of an air conditioner, characterized by comprising the following operations: detecting a current indoor ambient temperature value under a rapid cooling operation mode; judging whether the indoor ambient temperature value is greater than a preset temperature value; if yes, determining a first temperature interval in which the indoor ambient temperature value is located; characterized by: determining a corresponding rapid cooling rotating speed value of an indoor fan of the air conditioner according to the first temperature interval, wherein the rapid cooling rotating speed value is greater than a maximum rotating speed value of the indoor fan of the air conditioner, wherein the maximum rotating speed value is the maximum rotating speed value that the indoor fan does not exceed during a normal operation mode; and controlling the indoor fan of the air conditioner to operate according to the rapid cooling rotating speed value; wherein before the operation of detecting a current indoor ambient temperature value under a rapid cooling operation mode, the method further comprises: dividing temperature values greater than the preset temperature value into a plurality of temperature intervals, and each of the plurality of temperature intervals corresponds to one rapid cooling rotating speed value; wherein the first temperature interval is one of the plurality of temperature intervals. detecting a current indoor ambient temperature value under a rapid cooling operation mode; judging whether the indoor ambient temperature value is greater than a preset temperature value; if yes, determining a first temperature interval in which the indoor ambient temperature value is located; characterized by: determining a corresponding rapid cooling rotating speed value of an indoor fan of the air conditioner according to the first temperature interval, wherein the rapid cooling rotating speed value is greater than a maximum rotating speed value of the indoor fan of the air conditioner, wherein the maximum rotating speed value is the maximum rotating speed value that the indoor fan does not exceed during a normal operation mode; and controlling the indoor fan of the air conditioner to operate according to the rapid cooling rotating speed value; wherein before the operation of detecting a current indoor ambient temperature value under a rapid cooling operation mode, the method further comprises: dividing temperature values greater than the preset temperature value into a plurality of temperature intervals, and each of the plurality of temperature intervals corresponds to one rapid cooling rotating speed value; wherein the first temperature interval is one of the plurality of temperature intervals. determining a corresponding rapid cooling rotating speed value of an indoor fan of the air conditioner according to the first temperature interval, wherein the rapid cooling rotating speed value is greater than a maximum rotating speed value of the indoor fan of the air conditioner, wherein the maximum rotating speed value is the maximum rotating speed value that the indoor fan does not exceed during a normal operation mode; and controlling the indoor fan of the air conditioner to operate according to the rapid cooling rotating speed value; wherein before the operation of detecting a current indoor ambient temperature value under a rapid cooling operation mode, the method further comprises: dividing temperature values greater than the preset temperature value into a plurality of temperature intervals, and each of the plurality of temperature intervals corresponds to one rapid cooling rotating speed value; wherein the first temperature interval is one of the plurality of temperature intervals. dividing temperature values greater than the preset temperature value into a plurality of temperature intervals, and each of the plurality of temperature intervals corresponds to one rapid cooling rotating speed value; wherein the first temperature interval is one of the plurality of temperature intervals.