A waterproof ultrasound scanner includes a main casing, an ultrasound probe, a probe inner frame, a probe outer cover, a first waterproof member, and a second waterproof member. A circuit board is disposed inside the main casing. The ultrasound probe has at least one electric route connected to the circuit board. The probe inner frame abuts against the ultrasound probe. The probe inner frame has at least one route outlet for the electric route to pass through. The probe outer cover encloses the ultrasound probe and the inner frame, and is partially located inside the main casing. The outer cover has a first opening through which the ultrasound probe is exposed. The first waterproof member is hermetically clamped between the ultrasound probe and the inner frame. The second waterproof member is hermetically clamped between the outer cover, the inner frame, and the main casing.
