An NMR probe is offered which enables a .sup.1H/.sup.19F compatibility mode having a sample coil, a hollow tubular body, and two rod electrodes disposed inside the tubular body substantially in a parallel relationship to each other. The tubular body is formed by a conductive wall at ground potential. An RF input-output portion corresponding to the resonant frequency of .sup.1H nucleus is connected with the one end of the coil via a tuning and matching device. Another RF input-output port corresponding to the resonant frequency of .sup.19F nucleus is connected with an end of the coil via another tuning and matching device.