In the non-cultivated land resources of sea-beach of Hainan Province,some experi-ments were conducted to study the effect of growth and yields of Aloe vera L.irrigated under different ratios between seawater and fresh water treatments A1(CK):100∶0;A2:90∶10;A3:75∶25;A4:50∶50;A5:25∶75and A6:0∶100.The results showed that:(1)The coefficients of the seedlings and the general growth of Aloe vera L.were treated as A3>A2>A1irrigated with certain concentration of seawater,but the result was descended when the concentration of seawater exceeded certain extent.Field experiments were carried out for3consecutive years,and results indicated that there are no significant distinctions between the dry and net weights of Aloe under A1,A2and A3,but root weight on A3is higher than the one on A1,the leaves weight on A4is higher than the A1too,and dry weight decreased within the scope of20%.These results showed that it is feasible to irrigate Aloe vera L.with seawater.(2)The time of nutrition period shifting towards the procreation is delayed on the condition of enhancing seawater irrigation.And it is propitious to enduring leanness of Aloe vera L.as a result.(3)The content of salt descended ra-pidly at the range of0～10cm of soil depth under these kinds of seawater irrigation practices.But the change is slow below10cm.And the content of salt of0～50cm of soil is around0.3%when irrigated with seawater without artificial controls.