Table-top attosecond coherent light sources have achieved rapid development in the past two decades. Its research focus has gradually migrated from the generation and characterization of attosecond pulses in early times to tracing and controlling exceedingly fast processes with unprecedented time resolution. Nowadays， attosecond time resolved spectroscopies have been developed to successfully capture transients in simple atomic and molecular systems. Extending their applications to dynamics measurement in complex systems such as chemical molecules， biomolecules and condensed matter is ongoing. This paper reviews the development of ultrafast measuremt techniques using high-order harmonic based attosecond pulses， and introduces their applications in physics， chemistry and information sciences.