身世凄慘,年(nian)(nian)幼喪母(mu),十(shi)一(yi)歲(sui)時繼母(mu)圖他(ta)家產(chan)設下(xia)毒計害死(si)白(bai)一(yi)子父(fu)(fu)親,并(bing)將白(bai)一(yi)子投入井中,幸被(bei)普度所救。之后白(bai)一(yi)子拜峨眉山(shan)八十(shi)一(yi)門(men)(men)總門(men)(men)長普度老(lao)劍(jian)(jian)客為師學(xue)習武藝,十(shi)六歲(sui)下(xia)山(shan)替父(fu)(fu)報仇,手刃賊人(ren),并(bing)將家產(chan)上(shang)繳衙(ya)門(men)(men)自首,為人(ren)光(guang)明(ming)磊落(luo)。隨師學(xue)藝五(wu)十(shi)余(yu)年(nian)(nian),隨普度游歷(li)各(ge)大名(ming)師,雪竹(zhu)蓮賜綽號“白(bai)衣(yi)神童小劍(jian)(jian)魔”。看似十(shi)六七歲(sui)的(de)年(nian)(nian)輕(qing)少年(nian)(nian),實際(ji)上(shang)是年(nian)(nian)過(guo)七十(shi)的(de)老(lao)人(ren),練功得以返老(lao)還童,掌(zhang)中佛(fo)光(guang)劍(jian)(jian)威震武林。
《龍虎風云會》中,白一子(zi)的武功比(bi)夏(xia)遂(sui)良(liang)(liang)(liang)只高不低。白一子(zi)是普度最(zui)(zui)得意的弟子(zi),也是峨眉四劍(jian)(jian)中功夫最(zui)(zui)厲害的。在三教堂(tang)曾和金(jin)燈(deng)劍(jian)(jian)客夏(xia)遂(sui)良(liang)(liang)(liang)打(da)斗三場(先用(yong)武器,之后(hou)暫停空手(shou)(shou),最(zui)(zui)后(hou)又用(yong)武器),總共三百(bai)五十回合,未分勝負(fu);后(hou)在東海小蓬萊,被金(jin)燈(deng)劍(jian)(jian)客夏(xia)遂(sui)良(liang)(liang)(liang)、陰光(guang)大(da)法師古月、臥佛(fo)昆(kun)侖僧三大(da)高手(shou)(shou)圍攻,被夏(xia)遂(sui)良(liang)(liang)(liang)打(da)傷,被捉。被救后(hou)參與(yu)(yu)大(da)破金(jin)燈(deng)陣,后(hou)在金(jin)燈(deng)陣內帶傷戰(zhan)夏(xia)遂(sui)良(liang)(liang)(liang)不敵,與(yu)(yu)上(shang)三門(men)所有高手(shou)(shou)合力(li)殺(sha)死夏(xia)遂(sui)良(liang)(liang)(liang)。
門派:峨眉派
住處:四(si)川峨眉山,八(ba)寶(bao)云霄觀
身(shen)份:峨眉四大(da)名(ming)劍,八十一(yi)門總門掌普(pu)度(du)閉門弟(di)子(zi)。《白眉大(da)俠》中排名(ming)第六。
師(shi)兄:白(bai)(bai)云劍客夏侯(hou)仁,一字峨眉(mei)馬鳳姑,寒江孤雁白(bai)(bai)綾女劍客尚云鳳。
師侄:白云瑞
武器:佛光劍
白(bai)一(yi)子(zi)(zi)(zi)是《白(bai)眉(mei)大俠》和(he)《龍虎(hu)風云會(hui)》中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)重要(yao)的(de)人(ren)物,多(duo)次(ci)幫助開封府、徐良、白(bai)蕓瑞等(deng)眾(zhong)(zhong)人(ren)。武(wu)藝極(ji)為高(gao)強,可以說(shuo)在(zai)很多(duo)關鍵時刻是開封府方面眾(zhong)(zhong)人(ren)的(de)頂(ding)梁柱,尤(you)其(qi)是多(duo)次(ci)面對金燈(deng)(deng)劍客(ke)夏遂良的(de)時候除了(le)白(bai)一(yi)子(zi)(zi)(zi)外開封府眾(zhong)(zhong)人(ren)沒有夏遂良的(de)對手。白(bai)一(yi)子(zi)(zi)(zi)性格(ge)耿直,脾氣火爆,同(tong)時也是疾惡(e)如仇,敢作敢當的(de)英雄。普度最(zui)得(de)意的(de)弟(di)(di)子(zi)(zi)(zi),同(tong)輩人(ren)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)的(de)頂(ding)尖(jian)高(gao)手,與(yu)夏遂良不相(xiang)上下( 《白(bai)》中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)略低,《龍》中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)略高(gao) ),也是同(tong)輩人(ren)中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)除了(le)于和(he)的(de)老徒弟(di)(di)羅霄外最(zui)年(nian)輕(qing)的(de)一(yi)個。三教(jiao)堂堂主詹風不敢與(yu)白(bai)一(yi)子(zi)(zi)(zi)交(jiao)手,《龍》中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)一(yi)腳踢死五陰劍客(ke)莊子(zi)(zi)(zi)秦,多(duo)次(ci)大戰武(wu)圣于和(he)的(de)頂(ding)門大弟(di)(di)子(zi)(zi)(zi)金燈(deng)(deng)劍客(ke)夏遂良,在(zai)武(wu)林中(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)讓惡(e)人(ren)聞風喪膽(dan)。