In the remote experiment in data transmission, data encryption to prevent loss of processing, the traditional methods to encrypt the data flow all together in one node, but in the case of transmission network bandwidth limited, unable to effectively prevent the encrypted data loss, put forward a new kind of remote data transmission in the encrypted data loss prevention methods, analysis of remote data transmission process, handling experimental data packet transmission section, make the same number and length of paragraphs, the original data, a segment as a unit, completed within the period of packet encoding transmission, caching, and decoding. On this basis, the data fusion algorithm, through the preparation stage, initialization phase and the experiment data fusion and encrypt the data loss prevention verification phase, the remote experiment data transmission encryption data loss prevention treatment. The experimental results show that the proposed method not only the accuracy is high, and can effectively prevent the encrypted data loss, privacy protection ability.