The invention discloses a dehumidifier. The dehumidifier comprises at least two first evaporators, at least two second evaporators, at least two condensers, at least two sensible heat exchangers and afan, wherein the at least two first evaporators, the at least two second evaporators and the at least two condensers communicate with each other so as to form a refrigerant circulation loop; each sensible heat exchanger at least comprises a first air channel and a second air channel, and the first air channel and the second air channel are adjacent to each other and are not conducted with each other in the sensible heat exchanger; the first air channel comprises a first air inlet and a first air outlet, and one first evaporator is correspondingly arranged at the first air outlet; the second air channel comprises a second air inlet and a second air outlet, one second evaporator is correspondingly arranged at one second air inlet, and one condenser is correspondingly arranged at one secondair outlet; and the fan is arranged near the condensers so as to suck outside air into the second air channels, and then the outside air is blown out through the first evaporators, the second evaporators, the second air channels and the condensers in sequence. The dehumidifier of the technical scheme aims to improve the dehumidification efficiency and increase the dehumidification capability of the dehumidifier.