Method and system for monitoring air outlet abnormality of dehumidifier

Disclosed is a method and system for monitoring air outlet abnormality of a dehumidifier. The method comprises: identifying the presence of a blockage abnormality at an air outlet of a dehumidifier; after the presence of a blockage abnormality at the air outlet has been identified, starting a high wind-level operation of the dehumidifier or controlling a wind deflector of the dehumidifier so that it resets; after the high wind-level operation runs for a set period or the wind deflector resets, identifying whether the blockage abnormality has been eliminated; and after it has been identified that the blockage abnormality has not been eliminated, controlling the dehumidifier so that it stops running, and sending a warning about a fault. The method and system for monitoring air outlet abnormality of a dehumidifier avoid the effects of long-term blockage of the air outlet of the dehumidifier on the operation, service life and reliability of the dehumidifier.