Abstract: With foundational methods of field study and experiment analysis, through investigated the resources condition of wild common Nepenthes in Hainan and studied its biology characteristics, the text’s author had got lots of first-hand data on its biology characteristic, distribute locations in Hainan, the soil type it grow on, its accompanying plant species, soil nutrient content, itself nutrient content and the nutrient content of the liquid in its pitcher, ect. All of those provided important consults data for further research which should solute the problems on introduction and cultivation.