The invention relates to large size sleeve pipe optical rod assembling equipment, and belongs to the technical field of optical rod and optical fiber processing. The equipment is composed of a core rod storage device, a core rod assembling device, and a sleeve pipe assembling device. The front termination of the core rod assembling device is provided with the core rod storage device through a connection piece A. The rear termination of the core rod assembling device is provided with the sleeve pipe assembling device through a connection piece B. The equipment can precisely place a preform core rod in a predetermined position in a sleeve pipe, which has been subjected to tapering, without any wear through an adjusting roller, an elevating mechanism, and a roller finely adjusting device, and completes the manufacturing of large size optical fiber preform. The large size sleeve pipe optical rod assembling equipment has low requirements on the height of used space; due to the functional module assembly structure, the equipment is easy to disassemble and transport, the core rods can be stored and dried intensively, the consumption amount of clean gas is low, the operation height is reduced, and the risk that core rods fall down and break is reduced.