In the middle of the 18th century, the Wasan mathematician Arima Yoriyuki in the Seki school compiled the Shuki Sampo which made known to the public the important mathematics knowledge in Seki school. With his social status as the lord of a feudal domain, he practically elevated the academic status of mathematics and influenced the contemporaneous views on mathematics. From publishing Shuki Sampo, to his influence of political position and social class, and also to the financial support he given to Fujita Sadasuke to publish the Seiyo Sampo, we can see that he really played an important role in the process in making Wasan knowledge known to the public and in the promotion of Wasan in the later period of the 18^(th) century.