Peripheral longitudinal tears of the menisci in nine patients(eight men and one woman) were repaired by arthroscopic techniques from December 1985 to November 1986. Six lateral and three medial menisci were repaired. The results of the repairs were classified by Tapper and Hoover scale as excellent 2, good 4, fair 2 and poor 1. The aversge durstion of follow up was 17.6 months(range : twelve to twenty-four months). One patient had a rerupture and two patients had hemarthrosis. The repairs of peripheral meniscal tears hsve been shown to be an effective and successful procedure. Arthroscopic instruments and techniques have been improved to allow for the repair of some of these tears.