The invention discloses a flower and fruit balanced and healthy maintenance method for crops. The method comprises the following steps of: firstly, carrying out flower forcing, and then, during a flowering phase, after Megafol and Boroplus are blended with water to be diluted, spraying a mixture to leaves and flowers for promoting
flower formation; after a flower withers, diluting by Meizuo, adding
gibberellic acid, and spraying to the leaves and the flowers; in 10-20 days after fruit retention, diluting by Meizuo and Fruitfat, and spraying; during a fruit
embryo swelling period, diluting by Norway cytex, Brexil
calcium boron or Lingaibao, evenly mixing, and spraying; after the fruit
embryo swelling period, diluting by Megafol, Brexil
calcium boron or Lingaibao, evenly mixing, and spraying; during fructescence, diluting and mixing by Megafol and Quality-K, spraying on leaves and fruits; and after the fruit is
colored, diluting and mixing by Quality-K and
phosphorus-
magnesium essences,and spraying on leaves and fruits. The invention puts forward a
crop maintenance method so as to solve the problems of
crop blooming, fruit setting and flower
bud differentiation, and a relationship between
branch tips and leaves as well as fruits is balanced so as to improve a yield and fruit quality.