中国科学院(yuan)院(yuan)士(shi)、精(jing)密机(ji)(ji)(ji)床设计及工(gong)(gong)(gong)艺专(zhuan)家。中国机(ji)(ji)(ji)械(xie)(xie)总(zong)院(yuan)名誉院(yuan)长。毕(bi)业(ye)于大连工(gong)(gong)(gong)学院(yuan)机(ji)(ji)(ji)械(xie)(xie)系机(ji)(ji)(ji)床工(gong)(gong)(gong)具专(zhuan)业(ye)，在机(ji)(ji)(ji)械(xie)(xie)工(gong)(gong)(gong)业(ye)部北京机(ji)(ji)(ji)床研(yan)究所期(qi)间历任技(ji)术员(yuan)、工(gong)(gong)(gong)程师、高工(gong)(gong)(gong)（研(yan)）、室主任、副总(zong)师、所长。现工(gong)(gong)(gong)作于中国机(ji)(ji)(ji)械(xie)(xie)工(gong)(gong)(gong)业(ye)联合会，科技(ji)委任副主任，1993年当选为(wei)中国科学院(yuan)院(yuan)士(shi)（学部委员(yuan)）。第(di)七-九届全国政协委员(yuan)。

徐性初院士长(zhang)期从事精密(mi)(mi)(mi)计(ji)量及精密(mi)(mi)(mi)量仪(yi)研(yan)制(zhi)(zhi)和精密(mi)(mi)(mi)加工(gong)及超精密(mi)(mi)(mi)机床(chuang)设计(ji)及制(zhi)(zhi)造(zao)工(gong)作。曾主持研(yan)制(zhi)(zhi)了我国(guo)第一(yi)(yi)台一(yi)(yi)米纵动光电比长(zhang)仪(yi)、以激光波长(zhang)为基准的刻制(zhi)(zhi)一(yi)(yi)米光栅(zha)和磁栅(zha)母机。开发了超精密(mi)(mi)(mi)机床(chuang)及超精密(mi)(mi)(mi)加工(gong)技术，先后研(yan)制(zhi)(zhi)成功超精密(mi)(mi)(mi)车(che)床(chuang)、铣床(chuang)等新产品，同时创造(zao)了一(yi)(yi)套(tao)低成本(ben)的关(guan)键(jian)制(zhi)(zhi)造(zao)技术。曾获国(guo)家科技进步一(yi)(yi)等奖及国(guo)家级有(you)突(tu)出贡献中青年专家。