The invention provides a condensation water collecting device. The condensation water collecting device comprises a condensate water collecting part. The condensate water collecting part comprises a collecting device and a condensing device. A collecting cavity is formed in the collecting device. A flow guide part is arranged at the bottom of the collecting cavity, and the bottom end of the flow guide part is connected with a draining part. The collecting device comprises a first side plate and a second side plate. The collecting cavity is located between the first side plate and the second side plate. Collecting grooves are formed in the side wall of the side, far away from the collecting cavity, of the second side plate. Through holes communicating with the collecting grooves and the collecting cavity are formed in the second side plate and located at the bottoms of the collecting grooves. The condensing device comprises a condensing part used for cooling the collecting cavity. According to the condensation water collecting device provided by the invention, moisture in water vapor can be efficiently and quickly drawn, cooled and recycled, material evaporation can be accelerated, gas with the moisture being removed can be effectively collected, the moisture can be recycled again, and environmental pollution and resource waste are reduced.