遺(yi)址(zhi)發現文物(wu)近千(qian)件,其中(zhong)(zhong)陶(tao)器(qi)(qi)475件,石(shi)(shi)器(qi)(qi)169件,骨(gu)器(qi)(qi)六(liu)七(qi)十件,銅(tong)器(qi)(qi)14件。陶(tao)器(qi)(qi)有(you)(you)(you)(you)夾沙和硬陶(tao)兩種,前者(zhe)皆手制,后(hou)(hou)者(zhe)輪(lun)制,且有(you)(you)(you)(you)花(hua)(hua)(hua)紋。陶(tao)器(qi)(qi)很少完整(zheng),其中(zhong)(zhong)以網墜為多。石(shi)(shi)器(qi)(qi)有(you)(you)(you)(you)斧、錛、鑿、刀(dao)、鏃、錐、環、紡(fang)輪(lun)、磨(mo)(mo)(mo)石(shi)(shi)等(deng)。石(shi)(shi)刀(dao)全(quan)部穿(chuan)孔(kong)(kong),有(you)(you)(you)(you)單孔(kong)(kong)、雙孔(kong)(kong),也(ye)有(you)(you)(you)(you)磨(mo)(mo)(mo)槽后(hou)(hou)穿(chuan)孔(kong)(kong)的。骨(gu)角(jiao)器(qi)(qi)有(you)(you)(you)(you)針、錐、紡(fang)輪(lun)、磨(mo)(mo)(mo)石(shi)(shi)等(deng)。石(shi)(shi)刀(dao)全(quan)部穿(chuan)孔(kong)(kong),有(you)(you)(you)(you)單孔(kong)(kong)、雙孔(kong)(kong),也(ye)有(you)(you)(you)(you)磨(mo)(mo)(mo)槽后(hou)(hou)穿(chuan)孔(kong)(kong)的。骨(gu)角(jiao)器(qi)(qi)有(you)(you)(you)(you)針、錐、紡(fang)輪(lun)、穿(chuan)孔(kong)(kong)獸牙、穿(chuan)孔(kong)(kong)骨(gu)片(pian)等(deng)。銅(tong)器(qi)(qi)有(you)(you)(you)(you)斧、鋮、刀(dao)、鑿、環、魚(yu)鉤(gou)和裝飾品,還發現半(ban)塊(kuai)陶(tao)范,范上花(hua)(hua)(hua)紋與一把(ba)銅(tong)斧花(hua)(hua)(hua)紋相吻合。此外,遺(yi)址(zhi)中(zhong)(zhong)有(you)(you)(you)(you)四處發現谷(gu)物(wu),出土(tu)時均成黑色。經有(you)(you)(you)(you)關部門鑒定,出土(tu)谷(gu)物(wu)屬于粳稻(dao)類型。還有(you)(you)(you)(you)大量獸骨(gu)出土(tu)。
經中國科學院(yuan)考古(gu)研究所(suo)實驗室放射性(xing)碳素測定,海門口出土圓木樁,距(ju)今已3115±90年(公元(yuan)前(qian)1150±90年)。經過樹輪較正后的(de)數據為公元(yuan)前(qian)1335±155年。
海門(men)口遺(yi)(yi)址(zhi)出(chu)土(tu)文(wen)(wen)物(wu),屬銅(tong)石并(bing)用時(shi)期(qi)文(wen)(wen)化,這一(yi)(yi)遺(yi)(yi)址(zhi)的(de)(de)(de)(de)(de)發(fa)現(xian),反(fan)映出(chu)云(yun)南(nan)(nan)(nan)(nan)原(yuan)始社會(hui)末期(qi)之社會(hui)面(mian)貌,說明當(dang)時(shi)這里(li)已形(xing)成一(yi)(yi)個濱(bin)水的(de)(de)(de)(de)(de)村落,村落房屋(wu)為(wei)一(yi)(yi)種(zhong)干欄建筑(zhu),與(yu)近(jin)代云(yun)南(nan)(nan)(nan)(nan)一(yi)(yi)些少(shao)數民族房屋(wu)相似。遺(yi)(yi)址(zhi)發(fa)現(xian)的(de)(de)(de)(de)(de)器(qi)物(wu),具有洱海地(di)(di)區新石器(qi)文(wen)(wen)化若干特(te)征(zheng),無論石器(qi)或骨器(qi),都磨得整齊精致(zhi),陶器(qi)開始出(chu)現(xian)輪制痕跡,說明整個社會(hui)生產力有了(le)飛躍的(de)(de)(de)(de)(de)進(jin)(jin)步。特(te)別值得注(zhu)意的(de)(de)(de)(de)(de)是,發(fa)現(xian)的(de)(de)(de)(de)(de)14件(jian)銅(tong)器(qi)中有斧(fu)、刀、鑿裝飾品和(he)魚鉤,還有制造銅(tong)斧(fu)的(de)(de)(de)(de)(de)范(fan),標志著當(dang)地(di)(di)冶金(jin)術(shu)的(de)(de)(de)(de)(de)發(fa)展。這些銅(tong)器(qi)雖然粗糙(cao)、簡(jian)單,但后來云(yun)南(nan)(nan)(nan)(nan)光(guang)輝燦爛的(de)(de)(de)(de)(de)青銅(tong)文(wen)(wen)化是從(cong)這里(li)開始的(de)(de)(de)(de)(de)。由于生產工具的(de)(de)(de)(de)(de)改造,農業、畜牧業和(he)漁(yu)獵均很發(fa)達。遺(yi)(yi)址(zhi)中發(fa)現(xian)的(de)(de)(de)(de)(de)粳(jing)稻大概(gai)一(yi)(yi)直是遠古時(shi)期(qi)云(yun)南(nan)(nan)(nan)(nan)地(di)(di)區栽培主要稻種(zhong)。從(cong)測(ce)定的(de)(de)(de)(de)(de)遺(yi)(yi)址(zhi)形(xing)成時(shi)間看,當(dang)時(shi)云(yun)南(nan)(nan)(nan)(nan)剛剛跨(kua)進(jin)(jin)階級(ji)社會(hui)的(de)(de)(de)(de)(de)大門(men),而我國中原(yuan)地(di)(di)區正處在殷商晚期(qi)。截(jie)止目前所知(zhi),海門(men)口遺(yi)(yi)址(zhi)是云(yun)南(nan)(nan)(nan)(nan)銅(tong)石并(bing)用文(wen)(wen)化早發(fa)源地(di)(di),標志著云(yun)南(nan)(nan)(nan)(nan)地(di)(di)區利用金(jin)屬的(de)(de)(de)(de)(de)開始。