Robbery crime is a serious and high crime type. An Empirical Analysis of Robbery Crime in Beijing in the Past 12 Years found，There is a decreasing trend in the number of crimes year by year. But But the degree of harm is increasing，the impact of the depth is also increasing. The harm to the property right is gradually weakened，but the infringement of personal right is increasing year by year. The proportion of common crime decreased，but the individual’s ability to crime has been increasing year by year. The number of criminals began to decrease year by year，but the difficulty of preventing robbery is increasing. Moreover，there are still some other important features，such as the crime control policy caused the number of ups and downs of crime，and social development influences the change of criminal.