This rekiho adopted the theory that the orbit of the sun and the moon is ellipse and the method that formulated a periodical variation of astronomical constants in calculating the celestial movement, based on "Rekisho kosei kohen (A Complete Carendrical Treatise on the Method of Calculating the Celestial Movement: a Sequel to the Former Work)," a translation of the Chinese version of Western astronomy books.
この暦法では、西洋天文学の書物の中国語訳である『暦象考成後編』を元に、月や太陽の運行に楕円軌道法や消長法を採用した。