This paper studied quantitative evaluation of monolithic concrete floor finishing, and the influence of specifications of mechanical trowelling and properties of concrete on floor finishing. First, evaluation scales were composed and configurational parameters of concrete surface were measured. Based upon the relationship between evaluation scales and parameters, we presented proper parameters which indicate the quality of floor finishing. Next, mechanical trowelling experiment, analysis by statistical methods, and measurement of properties of concrete were performed respectively. As a result, we cleared up the influence of specifications of trowelling and properties of concrete, and the possibility of their-quantification.