With the increasingly serious environmental pollution in China, the government is imperative to intensify environmental protection efforts. Besides, scientific and effective environmental management plays an important role in protecting environment and improving environmental quality. Environmental technology progress is an effective and lasting driving force for environmental management, but its measurement method has not been able to achieve universal. The importance of technological progress in improving environmental quality was summarized in this paper, on the basis of that, the researches of many scholars on measurement methods of the technical progress and biased technical progress were expounded. Then, the paper introduced the application of big data in environmental management, on the basis of its application experience, big data was introduced to the field of environmental technology measurement, which provides a new opportunity for the measurement of environmental biased technology progress. Meanwhile, the application of big data also increases the difficulty of research. Finally, based on the contradiction between the biased technological progresses, the concept of optimal environmental technology was put forward. By making use of big data, biased technical progress can be reasonable measured and then reasonable ratio of production biased technology progress and environmental bias technology progress could be realized. In addition, optimal biased technical progress pattern, which can take into account the high output and low pollutant emissions could be obtained. Combined with the regional differences and association, regional optimal biased technical progress pattern could be calculated. Thereby, an effective way of environmental management was found, which provides a reasonable reference for the environmental managers and policy makers.