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We report the emission variations in PSR J1047$-$6709 observed at 1369 MHzusing the Parkes 64 m radio telescope. This pulsar shows two distinct emissionstates: a weak state and a bright emission state. We detected giant pulses(GPs) in the bright state for the first time. We found 75 GPs with pulse widthranging from 0.6 to 2.6 ms. The energy of GPs follows a power-law distributionwith the index $\alpha=-3.26\pm0.22$. The peak flux density of the brightest GPis 19 Jy which is 110 times stronger than the mean pulse profile. Thepolarization properties of the average profile of GPs are similar to that ofthe pulses with energy less than 10 times average pulse energy in the brightstate. This indicates that the emission mechanism is basically the same forthem. Our results provide a new insight into the origin of the GPs in pulsars.

Detection of giant pulses in PSR J1047-6709