其父(fu)和(he)舅父(fu)均為東北軍軍官,父(fu)親在從事抗(kang)日活動(dong)中(zhong)被捕而病死(si)獄(yu)中(zhong),舅父(fu)在對日作戰中(zhong)犧牲(sheng)。徐翼目睹日軍給國(guo)家、民族、家庭帶來(lai)的不幸和(he)災難,憤然參加抗(kang)日“民軍”。
抗(kang)(kang)日(ri)(ri)戰(zhan)爭(zheng)爆發(fa)后,即(ji)辭別慈(ci)母和新婚妻子(zi),奔(ben)赴(fu)魯(lu)(lu)(lu)西北抗(kang)(kang)日(ri)(ri)戰(zhan)場。1938年(nian)(nian)(nian)(nian)11月,范筑(zhu)先(xian)(xian)抗(kang)(kang)戰(zhan)殉(xun)國,聊城形勢嚴峻。時任中(zhong)(zhong)共魯(lu)(lu)(lu)西北第(di)(di)三(san)地(di)委(wei)委(wei)員、戰(zhan)爭(zheng)動(dong)員部(bu)部(bu)長的(de)(de)徐(xu)翼,奔(ben)波(bo)于聊(城)、陽(yang)(谷(gu)(gu)(gu))、(東(dong))阿(a)地(di)區,建立(li)(li)陽(yang)谷(gu)(gu)(gu)縣(xian)(xian)第(di)(di)四(si)區抗(kang)(kang)日(ri)(ri)政(zheng)(zheng)(zheng)權,組建東(dong)進(jin)支隊第(di)(di)四(si)大隊,開展游擊戰(zhan),在3縣(xian)(xian)交界(jie)處創立(li)(li)了較為穩固的(de)(de)抗(kang)(kang)日(ri)(ri)根據地(di)。1940年(nian)(nian)(nian)(nian),徐(xu)翼被任命為陽(yang)谷(gu)(gu)(gu)縣(xian)(xian)抗(kang)(kang)日(ri)(ri)民主政(zheng)(zheng)(zheng)府縣(xian)(xian)長后,大力擴充地(di)方抗(kang)(kang)日(ri)(ri)武裝,加強地(di)方政(zheng)(zheng)(zheng)權建設。1941年(nian)(nian)(nian)(nian),徐(xu)翼升任冀(ji)魯(lu)(lu)(lu)豫(yu)軍區第(di)(di)六(liu)分區副司(si)令員,兼分區第(di)(di)三(san)團政(zheng)(zheng)(zheng)委(wei),率部(bu)活動(dong)于聊、陽(yang)、阿(a)一(yi)帶,兩年(nian)(nian)(nian)(nian)對敵作戰(zhan)30余次(ci),殲敵數(shu)千人。他身先(xian)(xian)士卒,作戰(zhan)勇敢,指揮(hui)有方。1943年(nian)(nian)(nian)(nian)3月在陽(yang)谷(gu)(gu)(gu)縣(xian)(xian)七級鎮殲滅(mie)戰(zhan)中(zhong)(zhong),他指揮(hui)部(bu)隊以“打(da)擊先(xian)(xian)頭(tou),阻擊后尾(wei),集中(zhong)(zhong)火力消滅(mie)中(zhong)(zhong)間”的(de)(de)戰(zhan)術,打(da)得(de)日(ri)(ri)軍及(ji)治安(an)軍血肉(rou)橫(heng)飛,狼狽而逃。1943年(nian)(nian)(nian)(nian)秋(qiu),徐(xu)翼調冀(ji)魯(lu)(lu)(lu)豫(yu)軍區任旅長。1944年(nian)(nian)(nian)(nian)秋(qiu),在率部(bu)赴(fu)鄆城消滅(mie)大漢奸(jian)劉(liu)本功的(de)(de)戰(zhan)斗中(zhong)(zhong)犧牲。1946年(nian)(nian)(nian)(nian),黨和政(zheng)(zheng)(zheng)府將(jiang)聊、陽(yang)、阿(a)交界(jie)地(di)區劃(hua)為“徐(xu)翼縣(xian)(xian)”。