We have carried out a detailed study of Mira symbiotic stars by means of a popu- lation synthesis code. We estimate the number of Mira symbiotic stars in the Galaxy as 1700–3100 and the Galactic occurrence rate of Mira symbiotic novae as from ～ 0.9 to 6.0 yr-1, depending on the model assumptions. The distributions of the orbital periods, the masses of the components, mass-loss rates of cool components, mass-accretion rates of hot components and Mira pulsation periods in Mira symbiotic stars are simulated. By a comparison of the number ratio of Mira symbiotic stars to all symbiotic stars, we find the model with the stellar wind model of Winters et al. to be reasonable.
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