Seedmeter is highheight installed by many precision planters. Seeds go through tube and get a high speed before implantation in those planters. Shift caused by a collision in high speed leads to bad uniformity of seed distance. To explore the law of seed implantation distribution based on highheight planting, an absolute arm with threedimensional (3D) laser was used to scan the soil surface profile of seed furrow, a 3D digital model of seed furrow was constructed, contact parameters between seeds and soil were calibrated. Coefficient of rolling friction, coefficient of sliding friction and collision recovery coefficient were 0.22, 0.727 and 0.16, respectively. Compared with the real test results, the distance error between implanted seed and outlet of seed tube by simulation was 4.7%. Operating speed, spacing in the rows and seed throwing angle were taken into account. Longitudinal offset of seed implantation point and the first landing point were taken as the indexes. A single factor test and a 2×4 full factor test were carried out. Singlefactor test results showed that spacing in the row had no significant effect on longitudinal offset (P>0.05), while seed throwing angle and operation speed had significant effect on the longitudinal offset of seeds (P<0.01). Full factor test result indicated that longitudinal offset was increased with the increase of operation speed under same seed throwing angle; longitudinal offset was increased with the increase of seed throwing angle under the condition of same operating speed. There was a linear correlation between longitudinal (along operation direction) velocity and longitudinal offset. Operation speed and seed throwing angle affected seed implantation distribution by influencing the longitudinal velocity between seed and seedbed. Field trials were conducted, results showed that with the increase of longitudinal velocity, the qualified index of spacing in the row first was increased and then decreased, and the coefficient of variation was firstly decreased and then increased, which further verified the conclusion of simulation test.