In the VANETs of high-speed movement of nodes

road traffic conditions greatly affect the performance of data transmission in the network. On the basis of greedy perimeter stateless routing（ GPSR） routing protocol

propose a routing protocol based on vehicle density in VANETs. The new protocol considers the factor of vehicle density and speed and direction of node movement

then designs the calculation method of vehicle density and makes new forwarding strategy instead of the greedy forwarding strategy of GPSR

which can select the path of better vehicle density to forwarding data to avoid phenomena of local maxima caused by uneven distribution of vehicle density. And can predict about link interruption caused by high-speed movement of nodes

then proposes effective repair mechanism to establish a stable VENETs routing of robust link. The performance of GPSR

and GPCR is compared by simulation using Matlab. The simulation results show that the capability of the new protocol is improved significantly compared with the other two routing protocols on delay time and forwarding rate and it is suitable to be applied in city scenes.