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Extensive fertilization method is one of the main reasons for the low utilization rate of fertilizer in China. Compared with the strip-type fertilization, the hole-type fertilization method can effectively improve the efficiency of fertilizer utilization, but currently there is a lack of mature hole-type fertilization equipment. In view of the above problems, a kind of notched precision hole-fertilizing apparatus was designed, which was used for granular fertilizer. The main structure and working parameters of the device were determined through theoretical analysis, and the analyzing of the shape of fertilizer cavity was focused on. The discrete element method (EDEM) was used to simulate and analyze the filling performance and fertilizer group movements under different conditions. The simulated results showed that the fertilizer cavity shape, operation speed and the fertilizing amount had significant influence on the fertilizing amount coefficient of variation between holes. With the increase of the operating speed and the reduction of fertilizing amount, the variation coefficient of fertilizing amount between holes was increased. Circular-type fertilizer cavity had the best stability in four kinds of shapes. The operating speed and fertilizer cavity shape had significant influence on the fertilizer disturbance coefficient. The time of fertilizer plate passing through the box and the form and size of disturbance on the fertilizer were main reasons affecting the stability of fertilization. Taking the qualified rate of fertilizing amount and coefficient of variation between holes as indicators, four types of fertilizer plates were arranged as verification test of at working speed of 7km/h and fertilizing amount of 300kg/hm2. The results showed that the performance of the circular-type fertilizer cavity was the best with fertilizing amount qualified rate of 94% and the variation coefficient between holes was 6.5%, which satisfied the requirements of hole-fertilizing.