Precision measurement method and device of laser scanner, scanner and storage medium

The embodiment of the invention relates to the technical field of precision measurement of laser scanners, and discloses a precision measurement method and device of a laser scanner, a scanner and a storage medium, and the method comprises the steps: obtaining a world coordinate system constructed according to a test region, setting a target in the test region, and setting a coordinate identifier for indicating a first coordinate on the target, the first coordinate is the coordinate of the target in a world coordinate system, acquiring the first coordinate by identifying the coordinate identifier on the target, acquiring the relative position of the laser scanner located at the first position and the target, acquiring laser point cloud data and constructing a point cloud coordinate system, thereby determining the second coordinate of the target in the point cloud coordinate system; and converting the first coordinate from the world coordinate system to the point cloud coordinate system to obtain a third coord