The present invention provides a method for generating plasma photonic crystals with different gas temperatures. The method comprises the following steps: arranging two water electrodes in a vacuum reaction chamber, allowing the water electrodes to electrically connect with a plasma generation power supply; arranging a frame between the two water electrodes, and arranging apertures with the diameter of 1.mm in the frame, wherein the distance between two adjacent apertures is 1; pumping air or mixing gas of air and argon into the vacuum reaction chamber to take as discharge gas, wherein the air pressure of discharge gas is adjusted as 0.1-0.55atm; and closing a switch, generating plasma photonic crystals in the discharging gap, and generating plasma photonic crystals with different gas temperatures in adjacent apertures. The method for generating plasma photonic crystals with different gas temperatures firstly realize the plasma photonic crystals with different gas temperatures and increases the selection mode of light modulation, and the method for controlling and adjusting light propagation realizes diversification, convenience and high efficiency of light beam modulation, and has a wide application prospect in the industrial field.