The utility model relates to a prohibit and move tablet for railroad locomotive vehicle reservoir area adopts fixed structure, including reference column and movable rod, wherein the movable rod passes through movable rod mounting hole and the assembly of movable rod mount pin between the two reference column, and the lever bracket advanced line location to the movable rod about welded respectively at both ends around thereby movable rod and reference column meet, and the movable rod top is equipped with the denoter, and is fixed with the combination of guide fixed from top to bottom by upper and lower fixed pin, and the denoter puts down launches that no entry, packs up the open locomotive of permitting and sails the trailer operation into. Reasonable in design, compact structure, location are accurate, movable rod, denoter, the fixed safe and reliable that rises and falls, practical convenient, improve with low costs, easy to carry out, on -the -spot emplacement standardard management.