Abstract: Fertilizer can provide nutrients for growth of crops，application of fertilizer is of great significance for increasing crop production and income.After use of mixed fertilizer applicator，amount of fertilizer is reduced，and utilization rate of fertilizer is improved.It also has positive impacts on farmers′ expenses decrease，farmers′ income increase and environmental protection.Research and development status of mixed fertilizer applicator were analyzed.And aiming at existing problems of domestic mixed fertilizer applicator，development countermeasures were put forward.