Abstract: In order to improve the interpolation efficiency of distributed strain measurement data of strain field reconstruction in structural strength test, a distributed interpolation algorithm of local interpolation and global fitting correction for distributed strain data is proposed. Research and discussion are conducted on strain result monitoring, data transmission speed improvement and multi-source data fusion. The applicability and progressiveness of the distributed measurement technology in the internal and external, in the local and global strain data fusion monitoring technology of the full-scale aircraft are analyzed.