Ego wall is a wall, usually in a professional's office, covered with an inordinate number of framed diplomas, certificates, and other tokens of academic achievement. The sheer number of items implicitly speaks to the superior skill or intelligence of the professional who earned them. This outward display mirrors and reinforces the professional’s perception of self, or ego.

个人荣誉墙（ego wall）通常能在某些专业人士的办公室中看到，墙上挂满了各种装裱好的文凭、证书以及其它学术成就的证明。荣誉墙上证书文凭的数量就能明显说明办公室主人过人的能力或智力，而这种外露的表现形式同时也反应并且加强了其主人的自我意识。

For example:

The lawyer's clients more easily parted with their money upon seeing the  ego wall  in his office.

这位律师的客户看到他办公室的荣誉墙之后就会乖乖掏钱了。