 The shape of Taipei Post Office in its 1930s design was like a trapezoid with three storeys and two wings.The structural design of the building was identical to the traditional Taiwanese-style residential house—the “Siheyuan.”

The main entrance of the post office faces northwest; this hall stretches 80 m wide with the entrance hallway protruding from the building, shaped like an arch.The front of the building has four pairs of classical double pillars, which together embrace two large and one small window frames.