The invention relates to a rotary table device convenient for long-distance disassembly and
assembly, which comprises a rotary fixed base, a rotary support transition plate, a rotary support, a rotary large disc, a positioning pin, a C-shaped fixed clamp and an electric
wrench, and the top of the rotary fixed base is provided with an upper boss and a positioning key slot which are in positioning fit with the rotary support transition plate; a positioning pin hole for positioning the
slewing bearing transition plate is also formed in the slewing fixing base; the rotary fixed base is fixed on the ground through foundation bolts, and has the advantages of few fault points, stable operation, high intelligent degree and the like.