Abstract: To explore the fruiting rule in natural stand of Larix olgensis Henry in Zhanbei Mountain Range,the author made a comparison study on four different types of its cones.Comparison analysis has also been conducted on the basis of the four types of canes. Rules on the interrelationship between fruiting and a few acting factors have been discovered.Both the amount of cones yielded and the quality of seeds from the four different types of cone stands have been proved to have a lot to dō with the site of the stands,the developmental stages as well as several other biological factors,while the color,shape,size,structure of seed scale and number of scales of those types of cones have had nothing to do with the factors mentioned above.