Fruit sweetener and application thereof

The invention relates to a fruit sweetener and an application thereof, and belongs to the field of fertilizers. The technical problem to be solved in the invention is to provide the fruit sweetener and the application thereof. The active ingredient of the fruit sweetener provided by the invention is composed of potassium, phosphorus, nitrogen, boron, molybdenum, magnesium, calcium, zinc, iron, and copper elements at a molar ratio of (31-66): (22-35): (14-83): (0.8-7): (0.05-0.26): (1.4-5.8): (0.5-3.3): (0.1-1): (0.1-1): (0.05-0.25). The fruit sweetener can increase the sugar contents of fruits by about 20%, has a good sweetening effect on various kinds of plant fruits and contains no hormone, so that the fruit sweetener is free of toxic or side effect on plants.