Plant growth regulators also known as plant exogenous hormones, are synthetic substances that are similar to natural plant hormones. They are used to regulate the growth of plants and are important measures to ensure agricultural production. Plant growth regulators will not be hazardous to human health if they are used in accordance with good agricultural practice. However, if they are misused, crops will grow excessively fast, resulting in ripening on the fruit surface with the core remaining raw, which will adversely affect the palatability and quality of fruits.