The slit lamp microscope comprises: a supporting base capable of precisely horizontally moving with respect to a frame a supporting section extended upward from the supporting base a slit light unit attached to a front end part of the supporting section, the slit light unit accommodating a slit lamp which emits a slit light downward a mirror unit attached to a vertical middle part of the supporting section, the mirror unit having a reflecting mirror, which reflects the slit light from the slit light unit toward an eye of an examinee and a microscope unit for observing the eye of the examinee. A slit lamp power cable, which supplies electric power to the slit lamp and which is extended from the supporting base, is provided in a hollow part of the supporting section and connected to the slit lamp in the slit light unit without being exposed outside.
