Disclosed are a pet watering device and an anti-blocking water pump for a pet watering device. The pet watering device comprises a water storage tank (1), a watering tray (2) and a water pump (5), wherein an upper end of the water storage tank (1) is provided with an opening； the water storage tank (1) is further provided with a first support structure (101)； the watering tray (2) covers the opening of the water storage tank (1) and is supported by the first support structure (101)； the watering tray (2) is provided with a water inlet (3) and a water outlet (4)； the water pump (5) is disposed inside the water storage tank (1)； a water outlet connector of the water pump (5) is in communication with the water inlet (3) through a pipeline, so as to pump water from the water storage tank (1) to the watering tray (2) by the water pump (5)； and the water in the watering tray (2) flows back into the water storage tank (1) through the water outlet (4). The pet watering device has a more compact structure and makes it more convenient for a pet to drink water, and the watering tray (2) is not easily overturned by the pet.本創作實施例公開了一種寵物飲水器、用於寵物飲水器的防堵水泵，該寵物飲水器包括儲水箱、飲水盤、水泵，其中儲水箱的上端設有開口，儲水箱上還設有第一支撐結構；飲水盤蓋在儲水箱的開口上，並受第一支撐結構的支撐作用，飲水盤上設有入水口和出水口；水泵設置在儲水箱內，水泵的出水接頭通過管道與入水口相連通，以將儲水箱內的水通過水泵泵送至飲水盤上，飲水盤內的水經過出水口回流至儲水箱內，本創作實施例提供的寵物飲水器結構緊湊，寵物飲水較方便，且飲水盤不易被寵物掀翻。
