The utility model provides a tower crane rotation mechanism prevent wind bolt structure, includes lower revolving stage, goes up the revolving stage and prevent wind the bolt assembly, prevent wind the bolt assembly to include the cantilever otic placode, lower cantilever otic placode, bolt and shoulder pole round pin, it connects at last revolving stage to go up the cantilever otic placode, down revolving stage under is connected to the cantilever otic placode, bolt sleeve hole and lower bolt sleeve hole have been opened respectively to cantilever end between them, bolt top -down passes bolt sleeve hole and lower bolt sleeve hole in proper order, the upper portion of bolt is equipped with and makes bolt card in the axle cap of last cantilever otic placode upper surface, axle cap's the left and right sides, the upper surface of going up the cantilever otic placode is equipped with the riser of accepting of two parallels, two same high position departments of accepting the riser open and have relative draw -in groove, the top surface fixedly connected with of bolt makes the bolt lift and leaves down the shoulder pole that block respectively in two draw -in grooves at both ends behind bolt sleeve hole, the rotatory bolt and sell. The utility model discloses realizing the limit function between the bolt is to the revolving stage, installing and demolish the convenience, stable in structure guarantees the safety of tower machine in the strong wind.