A fluorescence measuring apparatus is arranged to measure, substantially at the same time, a plurality of samples in a sample chamber or a plurality of points of the same sample, with the use of an excitation light source. The fluorescence measuring apparatus has a rotary sample stand (2) at the excitation light irradiation position, a plurality of through-holes (2a) are formed in the circumference of the rotary sample stand (2), and a sample placing unit (3) is insertable in each of the through-holes (2a). By moving the sample stand (2) relatively to the excitation light irradiation position, fluorescence measurement can be made on a plurality of samples without sample replacement required in a sample chamber (1).