The invention discloses a banana high-yield plantation method comprising steps of first, applying soil conditioners and base fertilizer before plantation, second, planting absorptive bud seedlings, immersing the lower ends of the absorptive bud seedlings into nitrate conducting solution, controlling voltage and pulse frequency and conducting electric shocks, third, watering, applying compound fertilizer after plantation, spraying urea solution toward leaves, weeding and loosening soil for one time, fourth, after two months, watering, applying compound fertilizer, spraying pesticide, weeding and conducting intertill soil and loosening the soil, spraying nutrition solution evenly mixed by pine needle meal, corn flour and water on flower bugs upon differentiation, and fifth, watering and applying mixed culture fermentation fertilizer mixed by mixtures formed by apple skins and banana skins and compound fertilizer after bug extraction, burying hot water pipelines in a plantation garden to warm banana roots. By the use of the plantation method, banana output is improved, banana growth period is shortened; and bananas have higher potassium content than bananas planted in the traditional way.