The Tenkabushin aimed not only to put daimyo in financial difficulties to lower the resistance power of daimyo to the bakufu, but also helped encircle the Toyotomi clan and give pressure to Saigoku daimyo.
これにより諸大名の財政を圧迫させて幕府への抵抗力を削減すると共に、豊臣氏への包囲網と西国大名の押さえとした。