Policy no mention. Ask HR, than they know I going to resign as our company only 20 headcounts

No choice, I have to ask HR.

Thanks all.

if policy not define then normally will not, ala luck.
but usually there will be terms mention about this.

Contractual bonus is a plus, means when the financial year end or calendar year end (December) you will get double pay. This is regardless of company making profit or loss. Not all companies are giving this though.