The utility model belongs to mound top hanging flower basket construction field among the bridge engineering, concretely relates to mound top hanging flower basket is buried bolt positioner in advance, the normal direction limiting mechanism of displacement taking place including being used for restricting in advance buried bolt along the normal direction of pouring the mould, and is used for restricting in advance buried bolt takes place the displacement along the tangential direction who pours the mould tangential limiting mechanism. The pre -buried problem that is difficult to reach the designing requirement to the hanging flower basket bolt of existence among the prior art, the utility model discloses can ensure hanging flower basket buried bolt's angle and the accuracy nature of length in advance. The beneficial effects of the utility model are that: ensure that the pre -buried degree of depth of buried bolt satisfies the designing requirement in advance. Can save the cost, mainly embody in the aspect of following two: firstly the utility model discloses simple structure then makes the construction side method simple, has improved work efficiency, and then has saved the human cost, secondly, the accuracy of buried bolt angle and length has been ensured in advance, additional cost such as the various materials avoiding the later stage effectively and increase and manual work because do over again.