The invention discloses typical terrain iron tower assemblage construction equipment. The typical terrain iron tower assemblage construction equipment comprises a main tower crane head section, a rotary four-way joint and a main tower crane standard section which are coaxially connected from top to bottom in sequence on an iron tower main body; lifting arms are arranged at the left end and the right end of the rotary four-way joint correspondingly, and lifting point ropes are arranged on lifting pieces; hoisting assemblies are arranged on the left side and the right side of the iron tower mainbody correspondingly; a roll-out support is arranged in the middle of the lower end of the iron tower main body; each hoisting assembly comprises an amplitude modulation storing and expanding device,an amplitude modulation steering pulley, a slip rope storing and expanding device and a slip rope steering pulley set which are sequentially fixed to the outer side of the lower end of the iron towermain body side by side, and further comprises an arm end pulley, an amplitude modulation trolley, two rod head steering pulley sets, two traction steering pulleys, two mechanically powered winches, an amplitude modulation rope, a traction rope, a guiding pulley set and two slip ropes; and an amplitude modulation rear pulley and an amplitude modulation front pulley are arranged at the two ends ofeach amplitude modulation trolley correspondingly, and a slip rope lifting lug is arranged below each amplitude modulation trolley. Butt-joint mounting of the lifting pieces can be quickly completed,and the safety guarantee and the construction efficiency can be effectively improved.