A electronic device and method for self-inspecting a waterproof function of the electronic device are provided. The electronic device includes a first sensor for sensing an external condition of the electronic device; a second sensor, which is sealed within the electronic device, for sensing an internal condition of the electronic device; and a controller for comparing values of the external condition and the internal condition sensed by the first sensor and the second sensor, respectively, and determining a status of the waterproof function of the electronic device, based on the comparison.