The invention relates to the plant hybridization breeding and cultivation technology and provides a method for shortening the production period of mango. The method is characterized by comprising the following steps: 1) sowing seedlings and transplanting; 2) selecting polyembryonic varieties to be grafted trees, performing heading-back cut to grafted trees half treetop to use as stock; 3) selecting robust seedlings for grafting, top-grafting the seedlings on the stock of grafted trees; and 4) dressing multi-effect triazole in the soil, digging shallow ridges on the two sides of the tree covers of the grafted trees after grafting, irrigating multi-effect triazole and earthing. The invention has the following prominent substantive features and significant progresses: 1. seedling high grafting technology is adopted in the method so as to increase the grafting survival ratio; 2. the dressing multi-effect triazole technology is used to control the spindling of branch tips of grafts, promote the branch tips for aging and create beneficial nutrient conditions for advancing blossom and fruiting and promoting fruit-bearing; 3. the invention is simple and practical, potential hybrids can bear fruits after half a year so that potential hybrids and false hybrids can be identified directly and fast and the breeding process of mango is greatly shortened; and 4. the method of the invention can be popularized to the mango production so that the economic benefit of the method is remarkable owning to early fruiting and appearing on the market.