In the context of a strong shift in labor structure from rural areas to service industries and industrial production at present, the number of workers in the agricultural sector has decreased significantly. The mechanization of maize production in the Northern mountainous region in general and in Lang Son, Son La, Yen Bai, etc. in particular is still low, the rate of mechanization in the stages is not equal, especially in the care. Harvesting due to lack of proper procedures, current machinery and equipment systems are mainly small, imported and designed to suit the terrain and soil conditions in the delta areas. Therefore, the study of models suitable for each condition of paddy, slope and area is considered as a solution to reduce labor, increase income, and improve the life of maize growers. The article shows the research results showing that initially models such as underground plowing, milling, sowing, tending etc. meet the requirements of growing maize in the Northern Midlands and Mountains region.