An assessment on the economic value of ecological forests in controlling flood,producing surface runoff,soil and water conservation and fertility improvement was carried out in Guangdong Province.The results showed that the total economic value of eco-forests to soil and water conservation and water resources improvement was 16 445.36 millions RMB in Guangdong Province in 2010,of which the economic value in producing runoff during dry period,fertility conservation,controlling flood and soil conservation were 6 205.60,5 343.17,3 034.59 and 1 861.99 millions RMB respectively,which accounted for 38%,32%,18%,12% of the total value of ecological forests.The total economic value of the eco-forest in soil and water conservation in Shaoguan City,Heyuan City,Qingyuan City and Meizhou City accounted for 55% of that in Guangdong Province.