With the improvement of the performance, the characteristics of programmable on graphics processor, and the high-level programmable hardware language (such as C for Graphics), people began to deal with the certain stage of graphics processing and graphics algorithm gradually translating to GPU from GPU.
Ray tracing algorithm which is one of the classic photorealistic rendering algorithm, uses optical reversible principle, by tracing light, can render the real world well. This paper introduces the basis of the programmable graphics hardware, and analysis the achievement of principle with the Ray tracing technology based on the GPU.The number of triangles drawed in the six scenes, increase complexitily from 2,016 to 60,960.Achieve the ray tracing map algorithm based on the CPU and GPU ,respectively, in three different resolutions.The characteristics of ray tracing technology based on GPU-accelerated will be got, after the comparison and analysis of the results.