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Arch blocking is an important factor that affects the stability of fertilizer apparatus performance. It is of great significance to analyze the mechanism of arching, anticlogging and arch breaking mechanism of the fertilizer discharge to improve the performance of the fertilizer discharge and the quality of fertilizing. In order to further explore the mechanism of anticlogging and arch breaking by spiral cone centrifugal fertilizer apparatus and provide theoretical basis for later optimization, the theoretical analysis and simulation tests of the designed spiral disturbance cone centrifugal centralized chemical fertilizer apparatus were conducted to explore the mechanism of anticlogging and arch breaking by spiral cone centrifugal fertilizer apparatus. And the anticlogging performance of the fertilizer apparatus was further tested by highspeed photographic test and a bench test. The movement model of granular fertilizers during the process of fertilizer removal by the designed spiral cone centrifugal fertilizer apparatus was constructed and the mechanism of disturbance anticlogging and arch breaking was analyzed. The positive effects of spiral disturbing blades on anticlogging and arch breaking and the feasibility of fertilizer apparatus disturbance anticlogging were clarified. By using the EDEM discrete element simulation software, the effects of the fertilizer apparatus with and without the spiral disturbance cup on the movement of the fertilizer were simulated. Spiral blades can provide rolling disturbance for the granular fertilizer at the junction of the fertilizer box outlet and the fertilizer apparatus, at the same time, increasing the downward movement speed of the granular fertilizer can prevent arching and clogging at this location. The highspeed photographic test showed that the granular fertilizer at the junction of the fertilizer box outlet and the fertilizer apparatus with a spiral disturbance cup was moved downward and in the same direction as the speed of the cambered cone disk. The process of granular fertilizer movement was smooth and there was no problem of fault falling. The granular fertilizer at the connection between the fertilizer apparatus without a spiral disturbance cup and the fertilizer box outlet made a slow downward movement, and the problem of fault falling during the movement of granular fertilizer. The bench test showed that when the rotation speed of the cambered cone disk was the same, the coefficient of variation of fertilizing amount stability of the spiral disturbance cup fertilizer apparatus was lower than that of the nonspiral disturbance cup of the fertilizer apparatus, and the coefficient of variation of fertilizing amount stability of two types of fertilizer apparatus was decreased with the increase of cambered cone disk rotating speed. When the rotation speed of the cambered cone disk was low, the coefficient of fertilizing frequency stability in the same row of the nonspiral disturbance cup fertilizer apparatus was lower than that of the spiral disturbance cup of the fertilizer apparatus. With the increase of the rotating speed of the cambered cone disk, the coefficient of fertilizing frequency stability in the same row of the fertilizer apparatus with and without the spiral disturbance cup were increased. When the speed was the same, the coefficient of fertilizing frequency stability in the same row of the spiral disturbance cup fertilizer apparatus was higher than that of the nonspiral disturbance cup of the fertilizer apparatus. The coefficient of variation of fertilizing amount stability of the spiral disturbance cup fertilizer apparatus was above 96%, the variation curve of coefficient of variation of fertilizing amount stability was not more than 5.57%, which can fully meet the quality requirements for field discharge of fertilizer.