Abstract: Abstract: According to watermelon's growth characteristic, be tied in wedlock Heilongjiang market demand law, concentration is thin in achieving on choosing a field , choosing the stubble, soil preparation , Apply fertilizer, grow seedlings at the right moment, planting , the science being in progress field management. The watermelon measures basis within the growth period to the manure of fermented night-soil mixed with water need , the irrigation carrying out science's at the right moment applies fertilizer , carry out the rational pruning , cover a vine with earth at different lengths and, boost watermelon's regularity growing. Science's timely spirit carrying out pest control , achieving collect, appear in the market after being postponed by watermelon of the best quality , make farmers gain higher economic effect. Keywords: watermelon; delay listing; high yield; cultivation technique