In order to strengthen cultivating students' engineering ability,the deficiencies of civil engineering mechanics experimental teaching about engineering ability training are summarized as "three aspect of disconnection". That is, disconnection of experiment content and engineering, disconnection of experiment contentand engineering standard, disconnection of single knowledge training and comprehensive knowledge application ability. And "two changes" are proposed to enhance the experimental teaching method. such as, transformation from teacher centered to students centered and from knowledge imparting to engineering ability training. In order to overcome these deficiencies, construction of multi-level experimental course system, comprehensive experiment projects, and diversified experimental teaching method are introduced. And finally reach the target of knowledge-ability integration cultivating.