The invention discloses a multi-platform crawling type wind turbine tower drum operation robot which comprises a first lifting platform, a second lifting platform and a third rotary platform, wherein the third rotary platform is arranged on the top surface of the second lifting platform, the first lifting platform and the second lifting platform respectively adopt synchronous belts and double-side curved plate chains to cooperatively work to perform stretching motion based on worm type climbing motion, and the third rotary platform adopts a steel belt and a circumferential motion cart to cooperatively work to perform stretching motion and rotary motion. The multi-platform crawling type wind turbine tower drum operation robot can adapt to stretching motion of different crawling section flexibly, and avoids inconsistent action caused by frequently changing tyres of a Ring robot and collision of a wind turbine caused by large size of a stretching mechanism.