Research aim: This research aimed to study effect of a high intensity shock microcycle (21 day) on developing aerobic and anaerobic abilities for kyorugi players in taekwondo. Curriculum used: Experimental curriculum using the experimental design of one experimental group. Research Sample and Characteristics: (8) kyorugi players in zagazig university team for taekwondo (Age 20.97± 0.74 years, Weight 66.94±7.23 kg). The most important results: high intensity shock microcycle developed aerobic and anaerobic abilities for taekwondo players, as the improvement rates reached between (0.75%:8.99%) for aerobic abilities and (5.52%:13.22%) for anaerobic abilities.