Crooked measuring device of iron tower component for the convenient realization is measured the crookedness of component. Characterized by, it includes support arm, contact arm, push rod and spring, the contact arm is the flexible piece, articulatedly on the contact arm installs a plurality of push rods, and the elongated slot on the support arm is arranged in to the push rod, is fixed with the pointer on the push rod, the spout sliding connection of pointer and support arm antetheca, and be equipped with the scale mark that corresponds with each spout on the antetheca of support arm, be equipped with a plurality of springs between contact arm and support arm, natural state is down at spring action lower support arm and contact arm parallel arrangement. The utility model provides a crookedmeasuring device of iron tower component, convenient to use, only need hold the support arm during use can near the component with the contact arm, the reading is convenient, is equipped with the scale mark on the support arm, and the crooked degree of component is represented to the decrement of spring.