The invention discloses an RTK field synchronous drawing sketching method. After measurement of each point, connection drawing is performed according to a measuring sequence, and little manual intervention is performed when necessary. After measurement, drawing can be fundamentally finished, thereby omitting a step of manual sketching a drawing, reducing manpower and physical resource which are required in measurement, realizing loading of a measured area image, facilitating point selection in measurement and finished drawing correction and use in a later period, realizing real-time data sharing of multiple RTKs, facilitating understanding of an integral working process and improving working efficiency.