The present invention discloses a breathing device comprising: a main body comprising at least one exhausting port, at least one one-way valve plate, an inlet port, and a stand-connecting part a air pipe being connected with the inlet port and comprising a check valve disposed on the inner part of the air pipe, wherein the check valve can prevent the air in the air pipe from flowing out of the main body through the air pipe a plastic stand, wherein one end of the plastic stand is connected with the stand-connecting part of the main body and a supporting part comprising a first surface and a second surface, wherein the first surface is connected with another end of the plastic stand, and the second surface being provided with at least one cushion element for increasing the comfortability when use.