An ultrasonic atomization apparatus comprising: a container including a separator cup configured to accommodate a source solution at a lower part; an internal hollow structure body including a hollow inside being provided above said separator cup in said container; a water tank that accommodates an ultrasonic wave conveyance medium inside, said water tank and said separator cup being positioned so that a bottom surface of said separator cup is immersed in said ultrasonic wave conveyance medium; and a plurality of ultrasonic vibrators provided in a bottom surface of said water tank, wherein when parts of a plurality of incident waves transmitted from said plurality of ultrasonic vibrators are reflected on said bottom surface of said separator cup, a plurality of bottom surface-reflected waves is obtained, said separator cup and said plurality of ultrasonic vibrators are provided to satisfy a reflected wave avoidance condition, said reflected wave avoidance condition is a condition that "said plurality of ultrasonic vibrators are not disposed in a propagation path of said plurality of the bottom surface-reflected waves", said bottom surface of said separator cup is formed into a spherical surface shape with a center projecting downward, said plurality of ultrasonic vibrators are disposed to be separated apart from each other so as to have a same distance from a reference point of said bottom surface of said water tank, said bottom surface of said water tank includes a plurality of reflected wave reception regions configured to receive said plurality of bottom surface-reflected waves, and said plurality of reflected wave reception regions are different from the regions where said plurality of ultrasonic vibrators are provided, characterized in that said ultrasonic atomization apparatus further comprises a plurality of ultrasonic wave absorption members provided in said plurality of reflected wave reception regions, a constituent material of said plurality of ultrasonic wave absorption members including at least one of urethane rubber, silicone rubber, fluorocarbon rubber, ethylene propylene rubber, butyl rubber, and ethylene rubber. a container including a separator cup configured to accommodate a source solution at a lower part; an internal hollow structure body including a hollow inside being provided above said separator cup in said container; a water tank that accommodates an ultrasonic wave conveyance medium inside, said water tank and said separator cup being positioned so that a bottom surface of said separator cup is immersed in said ultrasonic wave conveyance medium; and a plurality of ultrasonic vibrators provided in a bottom surface of said water tank, wherein when parts of a plurality of incident waves transmitted from said plurality of ultrasonic vibrators are reflected on said bottom surface of said separator cup, a plurality of bottom surface-reflected waves is obtained, said separator cup and said plurality of ultrasonic vibrators are provided to satisfy a reflected wave avoidance condition, said reflected wave avoidance condition is a condition that "said plurality of ultrasonic vibrators are not disposed in a propagation path of said plurality of the bottom surface-reflected waves", said bottom surface of said separator cup is formed into a spherical surface shape with a center projecting downward, said plurality of ultrasonic vibrators are disposed to be separated apart from each other so as to have a same distance from a reference point of said bottom surface of said water tank, said bottom surface of said water tank includes a plurality of reflected wave reception regions configured to receive said plurality of bottom surface-reflected waves, and said plurality of reflected wave reception regions are different from the regions where said plurality of ultrasonic vibrators are provided, characterized in that said ultrasonic atomization apparatus further comprises a plurality of ultrasonic wave absorption members provided in said plurality of reflected wave reception regions, a constituent material of said plurality of ultrasonic wave absorption members including at least one of urethane rubber, silicone rubber, fluorocarbon rubber, ethylene propylene rubber, butyl rubber, and ethylene rubber.