To provide a structure of a vaporizing humidifier capable of preventing water leakage from occurring when a product is turned over.

An air flow passage 4 allowing an intake port 2 at the rear of a frame 1 to communicate with an outlet port 3 at the front of the the frame. A water storage chamber 6 is installed under the air flow passage 4, and a blower 5 and a vaporizing body 7 partly reaching the inside of the water storage chamber 6 are installed in the air flow passage 4. The frame body 1 is formed of an upper frame A in which the air flow passage 4 is disposed and a lower frame B in which the water storage tank 6 is disposed. An upwardly divergent tapered inner wall 6b is formed at the circumferential edge part of the upper opening 6a of the water storage chamber 6. A sealing member 8a fitted to the inner wall 6b is installed on the outer circumference of a cover 8 covering the opening 6a. A vaporizing body storage part 9 extended in the water storage chamber 6 is formed integrally with the cover 8. A thin hole 9a passed through the vaporizing body storage part 9 and the inside of the water storage chamber 6 is formed at the lower part of the vaporizing body storage part 9 to which the lower part of the vaporizing body 7 reaches. The lower frame B including the water storage tank 6 and the upper frame A are installed between the bottom plate 10 of the upper frame 10 and the cover 8 of the water storage tank 6 through a distance piece 11, and the volume of the distance piece 11 is increased more than the internal volume of the vaporizing body storage part 9.