Thorough　understanding　of　intergranular　cracking　mechanism　is　essential　and　important　for　developing　superior　layered　cathodes.　As　a　chemomechanical　failure,　crack＇s　nucleation　and　evolution　are　affected　mainly　by　cycling　protocols,　but　it　is　still　lacking　direct　and　accurate　observations.　Herein,　we　develop　an　experimental　protocol　to　visualize　the　cracking　evolution　process　by　tracing　the　same　secondary　particles.　Further　combining　large　area　cross-sectional　observations,　we　identify　two　distinctive　cracking　mechanisms　due　to　different　state　of　charge　(SOC).　At　low　SOC,　chronic　fatigue　cracking　is　dominant.　At　high　SOC,　particle　bursting　makes　intergranular　cracks　quickly　saturated　during　the　initial　cycles,　causing　battery　rapid　performance　decay　in　the　beginning.　We　further　validate　that　cracks　are　nucleated　at　the　end　of　charging　process　and　it　is　the　discharging　that　leads　to　high　density　of　cracks.　Managing　individual　secondary　particle　below　the　critical　SOC　to　prevent　particle　bursting　is　essential　for　achieving　high　cycling　stability　of　Ni-rich　layered　cathodes.