The Chinese Journal Fulltext Database System was used to retrieve the research literature of directseeded rice and the data obtained from the literature were used to analyze the changes and relationships of the yield,yield components and dry matter accumulation of directseeded rice.Under different cultivation conditions, the yield, yield components and dry matter accumulation of directseeded rice all showed obvious fluctuations.In the four yield components, the number of effective panicles was greater than the yield,but the correlation with yield was not significant; the number of grains per panicle was not only greater than the yield,but also significantly correlated with the yield; the fluctuation of the seed setting rate and the 1 000grain weight was less than yield,not significantly related to yield.The dry matter accumulation of directseeded rice at different growth stages showed an inverted Vshape,and the fluctuation of dry matter accumulation at different growth stages showed a distinct inverted Vshaped feature. That is,the accumulation of dry matter in the early growth period is the smallest and the volatility is the largest; the accumulation of dry matter in the middle growth period is the largest and the volatility is the smallest; the accumulation amount and the fluctuation of the dry matter in the late growth period are between the early and middle periods. The relationship between the accumulation of dry matter and the yield in the early and middle stages was not significant,but the correlation between the late stage and the yield reached a significant level. Under different cultivation conditions,the level of directseeded rice production was mainly regulated by the number of grains per panicle and dry matter accumulation at the late growth stage.