As the development of attosecond sources and metrology technologies， the studies on ultrafast electron dynamics in condensed matter have entered the attosecond regime， leading to remarkable progress and breakthroughs in the past 15 years. Novel attosecond metrology has opened up new opportunities for the detection of ultrafast electron movement， resonant excitation， as well as complex electron-electron interactions on the attosecond timescale. This review surveys the important efforts aimed at probing intrinsic attosecond dynamics in condensed matters. The key technologies and status of attosecond sources enabled by high-harmonic generation， attosecond pulse measurements， and the detection of attosecond photoemission time delay on condensed matters are summarized. The development prospects are presented in the end.