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Japanese larch thermophilic species, rapid growth, water wet, strong resistance, versatile, is an excellent subalpine timber species. Japanese larch seed orchard is producing excellent quality genetic quality and sowing seeds for the purpose of the base, but a long low seed orchard seed yield, seed quality is poor, the size of the phenomenon has been plagued by issues such as the development of seed orchards, lack of improved seed to afforestation inconvenience. This article from the Japanese larch morphological development of male and female cones characteristics, the ball spent trees on the distribution characteristics, flowering synchrony, male and female gametes yield different clones, distributing pollen shedding period and spatial distribution of the distribution of seeds in cones characteristics and pedigree seed sowing quality and other aspects of the research, the following conclusions: (a) long-term evolution, Japanese larch male cones formed in favor of pollen shedding and protection from rain erosion morphological mechanisms: female cones formed in favor of the ovule ovule pollination and protection from rain erosion morphological mechanisms. Different site conditions, the same differences in flowering clones; same site conditions, there are differences of different clones flowering. Male cones biennial and triennial general was born on the old branches, the number of cloth in the horizontal direction of the largest in southern crown, the crown in the middle of the vertical distribution of the largest amount. Male cones shedding stage is divided into four periods, namely shedding early shedding peak, and the loose end of the period of the late shedding; female cones pollination stage is also divided into four periods, namely pollination early peak pollination, pollination and pollinators late the end of the period. (2) throughout the period of Japanese larch pollen shedding laws generally sporadic low and one high and one low; various dates between the amount of pollen dissemination showed a very significant difference; shedding peak of the initial phase and dispersing the impact of climatic factors by year; shedding peak period will last 3-5 days; daily pollen dissemination of law generally low and one high and one low; peak periods circulated daily peak pollen generally appear in the 10:00-16:00 time period, the date of the specific time period by climatic factors influence; between different time periods per day for distributing the amount of pollen was significantly different. 2004 pollen accumulation of 2.159 / mm 2 , 2005 年 pollen accumulation of 2.390 / mm 2 . Seeds park pollen eight horizontal orientation spatial distribution of the spatial distribution of different levels of canopy position and spatial distribution of different levels of the production area belong uniform distribution pattern. As the Japanese larch pollen without airbags, pollen distribution in the vertical direction showed an increasing trend from top to bottom, pollen vertical distribution pattern of spatial distribution of part of the cluster. (3) Japanese larch clones an average single male cones produce pollen counts are different, but this difference did not reach significance level; different clones of an average single female cones produce ovules there was a significant difference in the amount. The average amount of pollen produced male cones was 1.689 × 10 5 grains per plant producing seed tree pollen 4.093 × 10 7 tablets, seed orchard produce pollen 1.473 × 10 12 tablets. The average female cones produce ovules per volume 86.628, yield per plant ovule 3539.280 mother trees, seed orchards produce ovules 9.890 × 10 7 a. The proportion of male and female gametes is about 1:1.490 × 10 4 . Japanese larch cones mainly wide oval and cylindrical-shaped oval, cone and seed color is mainly brown and taupe. Cone diameter, length, number of bracts, bracts long, bud scales wide, plump seed number, seed number and astringent empty seeds, respectively 24.961mm, 27.432mm, 44.694 片, 10.773mm, 9.843mm, 55.917 tablets,
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