In order to explore the technical feasibility of synchronous side-deep fertilization technology for rice transplanting in Jilin Province, a field comparative experiment using side-deep fertilization technology in different ecological areas of Jilin Province was carried out. The results showed that the side deep fertilization treatment increased maximum tiller number, the number of effective panicles per hole and the number of grains per panicle, but it also led to the decrease of the spike rate. Under low nitrogen conditions, the seed setting rate and 1000-grain weight increased, while slight decreases were observed under medium and high nitrogen levels. The yield of sidedeep fertilization was significantly higher than that of conventional fertilization, and the yield increased by 5.5%-7.9% under the condition of reducing nitrogen fertilizer by 0-30%.