The current basic status in palletizing robot was analyzed briefly, and a novel structural feature of the inclined guide surface palletizing robot was described. By making structural static analysis for different inclined guide surface angles， the optimal inclination(θ) at 26° was found. Then finite element analysis (FEA) and improvement were taken for the palletizing robot which was in optimal inclination. The analysis results show that the maximum stress and displacement of the palletizing robot have all been reduced after improvement. By structural static analysis and improvement, the stiffness at the end and position accuracy of the palletizing robot have all been effectively improved, and at the same time, the palletizing robot has features of a good loading in structure, large rail moving range and compact structural, which can reduce driving energy and manufacturing cost to some extent, and have a good market prospects. 