The utility model discloses a pipeline wiring arrangement of assembled transformer substation, including the frame that is formed by square steel vertically and horizontally staggered overlap joint, being equipped with fiber cement board in the hole that square steel vertically and horizontally staggered formed on the frame, still including the box for trunking who supplies the pipeline embedding,be connected with the fixed channel -section steel that is used for fixing and supporting box for trunking on the square steel of frame, the box for trunking joint is fixed on fixed channel -sectionsteel. Box for trunking makes for tempered glass material. Fiber cement board is connected with the angle steel all around, and the angle steel is fixed with the frame. The utility model discloses thepipeline layout is arranged, according to nature, function and the construction requirements of different pipelines, plans overall rational planning and scientific arrangement pipeline position and arranges, forms and integrates the wall body, avoids that the pipeline lays at will, the pipeline alternately serious and overhaul inconvenient phenomenon to shorten engineering construction period, practice thrift the construction investment.