Full-airplane horizontal measurement method based on work space measurement location system

The invention provides a full-airplane horizontal measurement method based on a work space measurement location system. The method comprises first determining the number of measured work spaces and laser scanning base stations according to appearance dimensions and positions of measuring points; then using a standard ruler to calibrate external parameters of the measured work spaces formed by all the laser scanning base stations, and building a work space measurement location system coordinate system; then unifying the work space measurement location system coordinate system and an airplane coordinate system; using vector rods of the work space measurement location system to respectively perform contact measurement on each measuring point; and finally enabling measured coordinate values of each measuring point to be led into a data processor of the work space measurement location system, and comparing the actually-measured coordinate values with a theoretical value so as to judge whether airplane deformation is within an allowed range. The full-airplane horizontal measurement method solves the problems that a traditional airplane horizontal measurement method is poor in measurement precision, large in workload and low in measurement efficiency and is subjected to influences of operator's proficiency and the like.