In 1931, the Nationalist government invited selected representatives of rural society, labor, business, and the education sector to convene to draw up a provisional constitution for the tutelary period. Later the legislature drew up a draft constitution, and eventually, in 1936, the "May 5 draft constitution" was made public. Unfortunately, shortly thereafter Japan began its war on China, and the constitutional project was put on hold.
民國二十年，國民政府邀集農、工、商會及教育團體等各界代表集會，制訂了「訓政時期約法」；其後立法院起草憲法，在民國二十五年公佈了「五五憲草」，可惜不久抗日戰爭爆發，制憲之議只得暫緩。