The modification of “Criminal Procedure Law ”in 2012 brings not only opportunity but also a challenge for the official crime investigation work. Although it strengthens the attorney’s right to counsel and gives the suspect the rights to keep silence indirectly,but gives authority to use technical means of investigation for prosecution and clear evidence status of the electronic data at the same time. Facing with the worsening situation of China’s duty crime,procuratorial authority is supposed to transform truly the traditional mode of static testimony that is from people to matter and from confession to confirmation. Aiming at the features of frequency of counter-investigation,scarcity of clue,uncertainty of evidence,and weakness of chain,it is better to act positively and pay attention to collect and apply the renewable evidences result from counter-investigation of suspects by the way to attack from opposite side,find out button group,better evidence chain and enlarge the victory,thereby making the resultless cases to be irrefutable,the low-impact cases to be major,the individual cases to be collective.