The present invention provides a nasal suction device, including a collection chamber, a resilient bulb, and a one-way valve. The collection chamber includes a main body, a cover, and an inner space, the cover being detachably connected to the main body in substantially airtight relation, to define the inner space. The resilient bulb is detachably connected to the main body in substantially airtight relation. The cover includes a first tube extending into the inner space, and the secretion passing by the first tube can be suctioned into the collection chamber. The main body includes a second tube, an opening of which adjacent to the resilient bulb is configured with the one-way valve.
