The invention provides a device for turbine blade crown and boss pitch measurement. With the invention adopted, the problems of low precision of measurement results and poor stability of manual detection using a feeler gage in the prior art can be solved, and the assembly quality of turbine blades can be ensured. According to the device, an inner arc pitch template and a back arc pitch template are respectively provided with one set of positioning measurement mechanism; the inner arc pitch template and the back arc pitch template are respectively provided with a positioning block; each positioning block is provided with a meter setting block; the meter setting block is provided with a bottom positioning plane and a top angle plane; the angle of the top angle plane is a design theoretical angle of a surface to be measured of a blade; the bottom positioning plane of the meter setting block is attached to the positioning surface of the positioning block; a standard gauge block is arranged on the top angle plane of the meter setting block and is used for performing zeroing operation on a dial indicator; the dial indicator is installed on the positioning block; the measuring rod of the dial indicator passes through the through holes of the positioning block and the meter setting block sequentially so as to make the measuring head of the measuring rod contact with the plane of the standard gauge block in zeroing operation and contact with the surface to be measured of the blade in measurement.