In an X-ray analysis apparatus and an X-ray analysis method, a
quantitative analysis is stably performed by stably behaving an X-ray
source. There are possessed an X-ray tubular bulb irradiating a primary
X-ray to a sample, a primary X-ray adjustment mechanism capable of
adjusting an intensity of the primary X-ray, an X-ray detector detecting
a characteristic X-ray radiated from the sample, thereby outputting a
signal including energy informations of the characteristic X-ray and a
scattered X-ray, an analyzer analyzing the above signal, and an incident
X-ray adjustment mechanism disposed between the sample and the X-ray
detector, and capable of adjusting a total intensity of the
characteristic X-ray and the scattered x-ray, which are entered to the
X-ray detector.