Abstract: The excellent edible fungus Suillus luteus appeared in winter in the low altitude in the masson pine stand. Through 3 years of investigation and observation,the morphological character, the embryology and development of fruit bodies,the forest stand structure where the fruit bodies occurred and the weather factors were studied. It revealed the relationship between the growth of Suillus luteus fruit bodies and the weather,plant and soil.It pointed out the main factors determining the growth of fruit bodies of the edible fungus Suillus luteus and the greatest yield were accompanying tree species,site,forest stand structure and soil;while the rainfall and temperature were the key factors affecting the occulting time and yield of fruit bodies in the current year.