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In the past, plywood formwork needed various equipments, accessories, special labor, and complicate processes. To use precast form, however, cuts down the process of formwork, the period of construction, the labor cost so it promotes productivity and economical efficiency. Therefore, this paper aims for making clear the mechanical and structural rationality of using PC form in order to consult constructional convenience and economical efficiency. To determine the compressional behavior and capability of PC form column, this paper compared and analyzed the experiment and analysis results. The specimens are assorted the columns using box type PC form, the columns using channel type PC form, general block column, general brick columns, and general reinforced concrete columns. The variable of the columns using the PC form are the thickness and space of wiremesh, the strength of filling concrete, the type of PC form. The height of specimens is 60cm, the section is 30cm×30cm, the thickness of the PC form is 2.5cm, the main bar in filling concrete is D16, the tie bar is D10.