The utility model discloses an interval type special inside-inlaid drip irrigation pipe for forest trees, which comprises a pipe body, wherein at least two water outlet dripper groups are arranged in the pipe body, each water outlet dripper group comprises at least a water outlet dripper, and the spacing between the two adjacent drippers in each water outlet dripper groups is smaller than the group interval of the two adjacent water outlet dripper groups. The utility model has the advantages of simple structure, easy production manufacturing and convenient use, and can meet the demands of forest tree irrigation with large planting spacing, high water consumption and big planting area.