The invention provides a manufacturing method of organic high-mountain oolong tea. Raw materials are qingxin oolong good fresh leaves at the elevation of 1900 to 2600 meters, and standard fresh leaves with buds or small open faces are one bud with two leaves or one tender bud with three leaves. The manufacturing method comprises the following steps of sunning, tedding, rocking of green leaves, standing, killing at high temperature, rolling, samming, balling, drying, cooling and the like. The high-mountain oolong tea has the advantages of strong, round and plump cord, emerald green color, obvious sand green, strong, fresh and permanent aroma, fresh, mellow and brisk taste, green-yellow, bright and clear liquid color, strong, bright and uniform leaf base and fragrance for a long time.