Abstract: In this paper a matrix model is developed to analyze the growth and structure of uneven-aged forest stands and a linear programming technique is used to determine sustained-yield regulation regimes including the residual stock,harvest,stand structure,and cutting cycle,which would maximize the timber volume,or timber value,or present value of periodic harvests.The method was applied to Abies nephrolepis uneven-aged stands in Mudanjiang forest region in Heilongjiang Province as an illustration.