The invention relates to a plasma ignition test method applied to brown coal. The plasma ignition test method applied to the brown coal comprises the steps of firstly grinding the brown coal through acoal grinder, feeding the ground pulverized coal to a powder collecting bin, using a bucket elevator for feeding the pulverized coal in the powder collecting bin to a powder bin, then controlling a feeder to feed the pulverized coal in the powder bin into a pulverized coal mixer after weighing the pulverized coal in the powder bin through a powder feeding, weighing and metering system according to an external command, controlling a primary fan to feed hot air which is preheated through a vapor heat exchanger and carries the pulverized coal in the pulverized coal mixer into a plasma combustor,using a plasma gun for igniting the pulverized coal in the plasma combustor, and finally using a secondary air fan for supporting combustion with secondary air so as to completely combust the pulverized coal in a combustion chamber, wherein a draft fan discharges produced exhaust gas through a chimney after the exhaust gas passes through a cooling and dedusting system.