The invention provides a heterogeneous drawing node parallel figure drawing method based on sort-first load balance. The method includes acquiring the performance parameters of the heterogeneous drawing nodes in a drawing cluster; constructing a performance binary tree of the drawing cluster composed of heterogeneous drawing nodes; estimating the distribution of primitives in the screen space; determining the drawing area of the heterogeneous drawing nodes corresponding to the leaf nodes by means of the performance binary tree of the heterogeneous drawing nodes; dividing the screen according to the determined screen division position, and distributing the divided screen to the heterogeneous drawing nodes to execute the parallel figure drawing; and determining the screen division positions again when the load state of each heterogeneous drawing node cannot meet the load balance requirement. The influence of heterogeneous drawing node performance on the parallel drawing is considered, and the task load is distributed according to the performance of each drawing node. Meanwhile, the drawing time of each heterogeneous drawing node is counted, and on the basis of guaranteeing the load balance, the frequency for the task redistribution can be reduced as possible, and the drawing efficiency is improved.