Abstract: Study on tending and intermediate cutting in slash pine plantation proves that:on the condition of 14 site index, the best management density of short cutting cycle in slash pine plantation for pulpwood is 1 650～1 800/hm2 at the stand age of 15-year-old,and that for construction timber is 1 200～1 350/hm2,15 years later the second intermediate cutting should be carried out in time.