PROBLEM TO BE SOLVED: To provide an exhalation collection container which allows easy discrimination of whether it is before or after use and reduces size in a state before use.SOLUTION: An exhalation collection container 20 includes a container body 4 provided with a port part 2 and a body part 3 having a cylindrical shape with a bottom and collects exhalation blown into the port part 2 in the body part 3. The port part 2 is provided with a valve in it which opens when exhalation is blown into the port part 2 by the inflow pressure of the exhalation and closes when the blowing of exhalation stops. The body part 3 is provided with an inversion line part 9 extending the entire length of it along the direction of its axis O1, and one of the segmented parts 3a and 3b segmented around the axis O1 by the inversion line part 9 is caved in towards the inside of the body part 3.
