Control method and device of electronic expansion valve and air conditioner

The invention discloses a control method and device of an electronic expansion valve and an air conditioner. The method includes the steps of starting a compressor of the air conditioner; controlling the opening degree of the electromagnetic valve of the air conditioner to the first opening degree value, and starting timekeeping; detecting the first running parameter and the first running condition of the compressor, wherein the first running parameter is the running parameter of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time, and the first running condition is the running condition of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time; calculating the second opening degree value according to the first running parameter and the first running condition; controlling the opening degree of the electronic control valve to the second opening degree value. By means of the control method and device of the electronic expansion valve and the air conditioner, the problem that in the prior art, due to the fact that the control accuracy of the electronic expansion valve is low, the speed at which the compressor in an air conditioner system arrives at the stable running state after being started is low is solved.