PURPOSE: A tree vigor determining device and a cultivation method of Campbell Early grapes, including use of the tree vigor determining device are provided to facilitate determination of tree vigor right after harvest or during winter pruning. CONSTITUTION: A tree vigor determining device for Campbell Early grapes comprises a groove having a half-moon shape such that a branch can be inserted between a first bud and a second bud of a bearing branch. Determination standards are written on a circular plate of the tree vigor determining device for Campbell Early grapes: 4-6 mm (very weak)； cut 1/3 of a main branch, do not prune root； 6-8 mm (weak)； constantly manage practices, constantly manage leaves； 8-10 mm (normal)； normally manage vines, maintain an appropriate amount of fruit setting； 10-12 mm (strong)； concern of flower falling phenomenon occurrence, perform selective thinning； 12 mm or greater (very strong)； and flower falling phenomenon occurs, perform thinning on an entire area. [Reference numerals] (AA) 4-6 mm very weak； (BB) 6-8 mm weak； (CC) 8-10 mm normal； (DD) 10-12 mm Strong； (EE) 12 mm or greater very strong； (FF) Need to be determined본 발명은 결과지의 첫 번째 눈과 두 번째 눈 사이 가지를 넣을 수 있는 반월 모양의 홈이 구비되고, 상기 원판에 수세판단기준이 기재되어 있는 포도 캠벨얼리 품종 수세판단기 및 이를 이용한 포도 캠벨얼리 품종의 재배방법을 제공한다.
