Abstract: Line Integral Convolution（LIC） method is time-consuming，it can not have an insight into the internal information from the generated image，and market direction is not evident.Against the above shortcomings of the original VolumeLIC methods，the paper gives an improved VolumeLIC method，which differs from the previous algorithm.Compared to calculating the whole of the vector field，the new method selects some points from the field，and generates some flow lines from these points，then generates final image using VolumeLIC based on these flow lines.Test results show that the computing time is shorter and space direction has a significant enhance.