Based on the investigation data in Shaanxi Province, Gansu Province and Ningxia Hui Autonomous Region, where are the traditional agricultural areas in northwest, the apple breed technology, wheat seed technology and water-saving irrigation technology were chosen as the research objects. An systematic analysis of the difference in farmer’s adoption of new technology which is affect by the technology environment was made. The results showed, the technology environmental factors had great impact on farmer's adoption of new technology, and the soft environment’s impact was greater than the hard environment. Meanwhile, there was a big difference between the behaviors in farmer’s adoption of new agricultural technologies with different attributes. It specifically expressed that the adoption of apple breed technology was easily affect by the fruit company, the services times of agricultural technique department, the quality of technical training and the credit condition. The adoption of wheat seed technology was easily impact by the research organizations, the services times and quality of agricultural technique department, interpersonal network and the technology supply channel. The water-saving irrigation technology was more vulnerable to the impact of the technical organization with social service functions, the preferential policies and the media. At the same time, it can be found that the geographical factors had obvious restraints on farmer’s adoption of new technology.