In aspect of the scale of worksi the Three North Shelterbelt Program is up to now the mOSt magnificent project of forestry ecological construction in the world. At the endof 2000 the lst, 2nd, and 3rd periods of COnstruction in the 1st phase （1978-2000） had been completed Based On fuzzy comprehensive evaluation method. the paper is about the researches On post-evaluation in the Ist phase aims of the Three North Shelterbelt Program. The conclusion obtained is that the aims are partly successful.
