Studies have pointed out that there is no class solidification social mobility in China，but class solidification occupied the public opinion space for a long time. The reason is mainly due to the current “class solidification sense” that prevails among members of society. The“class solidification sense” is different from the existing concept and directly confronts the“solidification” factor felt by members of society. The formation of a sense of class solidification has both practical factors and historical factors and public opinion exaggeration. The existence of this social sense will also pose new challenges to the expression of opinions，political stability and political identity. To cope with the challenges brought by social sense，we should not only adjust from the aspects of actual economic development and social security，but also pay attention to the guidance of public opinion，enrich social evaluation standards，and release social emotions.