Abstract: 12 cases of sarcoidosis, 5 cases ot tuberculous lymphadenopathy in the hilum and mediastinum, 5 cases of hilar or mediastinal metastasis from lung concer were tested with Kveim suspension prepared in our hospital. The positive rata of Kveim test in sarcoidosis was 66.7% （3/12）. The Kveim tests done in tuberculous and eoncer metastasis lymphadenopathy in hilum and/or mediastum was negtive. This result shows that Kveim test is useful as a simple and relatively non-invasive means for the diagnosis of sarcoidosis.