Abstract: In order to explore the mechanization of intercropping and fertilization for summer maize, this paper designs a precision fixed hole fertilization experimental mechanism based on new energy technology, which can realize two rows of precise fixed hole fertilization in the corn field with equal row spacing of 600 mm. The mechanism includes walking mechanism, overall frame and electric control mechanism, fertilizer monomer mechanism with lifting and horizontal sliding adjustment, corn plant detection mechanism, hole fertilization distance keeping mechanism, etc. Among them, corn plant detection uses self reset travel switch to realize plant identification, fertilization monomer adopts electromagnetic push-pull rod, 3 D printing groove wheel and duck’s beak and other key structures to realize precise fertilization of fertilizer monomer into soil. Hole fertilization distance keeping mechanism adopts self reset travel and electric push rod to realize lateral movement of fertilizer monomer and ensure that the hole pricking point and plant are suitable Distance. Preliminary tests show that, when the truck passed each corn plant, it could apply fertilizer in the hole, and the variation coefficient of fertilizer amount was less than 6, which met the technical standard of the cultivator and topdressing machine. These data provide technical reference for mechanized precision fertilization of corn by using new energy technology.