LabVIEW is a virtual instrument software development platform introduced by NI, which uses a graphical programming language. This paper designs a LabVIEW-based drawing tool, which contains the basic functions needed for drawing. Users can use it to draw a series of images. At the same time, the system will automatically record the pixel coordinates of the image and plan the route. The combination of LabVIEW and lower computer can translate the relevant parameters into the action instructions of lower computer.