Taking the transformation effect of scientific and technological achevements as the research object to establish the evaluation system，the entropy weight method is used to get the weight and score of each subsystem and index. Super?SBM Model based on non?radial method of slacks?based measure is used to analyze the input?output efficiency of the two?stage process of transforming Sci?tech achievements into products. Furthermore，the extracted relaxation variable is normalized and the valid part after removing the efficiency value of the frontier is used to get the index fluctuation degree of each index. Then a BP Neural Network Model is constructed to verify the accuracy of the model’s prediction and to ensure the evaluation index system is reasonable and practical. Making analysis of the data of Shaanxi Province，the results show that the transformation effectiveness of Sci?tech achievements in Shaanxi Province is different in the seven subsystems，and the overall effectiveness is rising. However，the ability of economic transformation of Sci?tech achievements is insufficient，and the efficiency of R&D and the efficiency of economic transformation of Sci?tech achievements are unbalanced. The key point is to manage the three subsystems，such as scientific research funding，the human resources input，and the scientific research environment，and to further improve the efficiency of the transformation of Sci?tech achievements. Finally，combined with the above evaluation results of Super?SBM?BP(SSB) Model，feasible suggestions for the transformation of scientific and technological achievements are provided.