In 2019，the US strategic community has consolidated the concept of China as “a strategic competitor” and challenged China economically，geo-strategically and ideologically，which has been fought back strongly and resolutely by the Chinese side. The Sino-US strategic competition has become intensifying and the strategic competition framework within which the strategic interactions between the two sides occurring has emerged. After a seesaw struggle featuring some kind of “talking while fighting”，China and US arrived at a “phase one” trade deal，but the competition between the two sides in the field of high technology has increased. While the US strategic community further strengthening the so-called Indo-Pacific Strategy，the rivalry between China and the U.S. over the South China Sea and the Taiwan issue has become more and more intense. Simultaneously，the US side has increasingly factored ideology into the Sino-US strategic competition，and Sino-US confrontations over such issues as Hong Kong and Xinjiang have gone acute. Competition has become the theme of the Sino-U.S. relation，and the crisis management mechanisms in the bilateral interactions have to a great extent fallen into some dysfunctional state. Against such a background，the Sino-US competition will continuously develop within the extant strategic competition framework.