"接受社会救济的" can be translated into English as "those receiving social assistance" or "people who are on social relief".
Here are a few example sentences to illustrate the usage:
1、 Those receiving social assistance often face financial difficulties.
(接受社会救济的人往往面临经济困难。)
2、 The government provides support to people who are on social relief.
(政府为接受社会救济的人提供支持。)