The invention discloses a collection device for water leaked from a ceiling type air conditioner cold insulation pipe. The collection device comprises a water guide part guiding the water leaked from the cold insulation pipe and a water collection part storing the water leaked from the cold insulation pipe, the water guide part is arranged at the bottom of the cold insulation pipe, the section of the water guide part is flared, an opening of the water guide part faces to the bottom of the cold insulation pipe, and the side face of the water guide part is connected to fixing parts for fixing the collection device and the cold insulation pipe. A groove is formed in the inner side of the joint of the water guide part and the water collection part, and a filter plate is inserted into the groove. The bottom of the water collection part is connected with at least one water storage tank, a tank body of each water storage tank is disposed below a ceiling, and the water tanks are made of transparent materials. The collection device collects the water leaked from the cold insulation pipe, and prevents the water from dripping into a room from the ceiling. Meanwhile, the collected leaked water is collected, and convenience is brought to people for observing whether or not the ceiling leaks water so as to carry out timely maintenance.