Abstract: In order to research the all production factors of melon on the role of the output, Hybrid combination of theirbreedings have been the research object for our test. The fruit cavity diameter, fruit vertical cavity, fruit wall thickness andcharacteristics of the fruit weight about the melon were path analyzed. Experimental resuhs showed that the fruit cavitydiameter and the limit wall thickness had very- significant positive correlation tor fruit weight. In other words, by the processof breeding, we should choose variety- whose limit cavity- diameter was long and with thick skin.