Abstract: To solve the problem of lack of mechanization in Codonopsis seedling cultivation with film coating, a multi-functional point-seeding planter for Codonopsis seedling cultivation was designed based on motor drive and precise sowing, which can complete the processes of precision seed extraction and point-seeding with point-seeding. The structure and working principle of the whole machine are introduced. This paper determines the arrangement of the driving system of the pore-forming device and the seed-taking device. Replaceable seed-taking device is used to realize the requirements of precision seed-taking and multi-function machines. The plant spacing control device is designed to realize the operational requirements of different plant spacing. The design of the seeding depth adjustment device can realize the operational requirements of sowing at different depths. The controllable spring suspension is designed, and the stiffness and height of the suspension are changed to better adapt to the planting conditions to meet the planting requirements of different terrains. Adams is used to simulate the motion of the straight insertion cavitation device of the machine and tools. The vertical displacement, vertical velocity and horizontal displacement of a point on the cavitation rod were analyzed when the forward speed was fixed（0.15 m/s） and the crank speed was fixed（30 r/min）. The results showed that the vertical velocity curve measured by this point was 0.15 m/s at the entry section（0.2～0.64 s） and the excavation section（1.2～1.64 s）. In addition, the moving speed of the entry section was the same as that of the planter, but the direction was opposite. The absolute velocity was zero, which met the requirements of the straight insert design. SolidWorks Motion is used to carry out simulation experiments on the machine tool model. The movement trajectory of the machine tool at the lowest point of the hole forming rod with different crank speeds is analyzed when the vehicle speed is fixed（0.15 m/s）. MATLAB is utilized to perform curve fitting between crank speed and theoretical and simulated plant spacing, and the relationship between the two was obtained, respectively. Meanwhile, it is verified that the theoretical and simulated plant spacing of the machine is very close. At the same time, the field experiment showed that the electric direct plug-in dibbling Codonopsis pilosula seed planter operates smoothly and orderly. The results show that the whole grain percent of pass is 98.2% after sowing, sowing depth percent of pass is 95.1%, the qualified rate 98.7%, spacing hole rate is 0.8%, the membrane under sowing depth percent of pass is 94.8%, the cavity dislocation rate was 0.6%, and the membrane surface daylighting mechanical damage degree is 48.6 mm/m~2 accord with NY/T 987—2006 standard for film dibbling machine operating quality evaluation index requirements.