Decorative properties of chromium depositions from oxalic acid bath containing chromium oxide and ammonium sulfate have been examined over a wide range of bath compositions and plating conditions. The obtained results from this experiment are summarized as follow: The followings were determined as a optimum conditions, bath compositions; $CrO_3;200{sim}250;g/{ell},;H_2C_2O_4{cdot}2H_2O;500{sim}700;g/{ell},;(NH_4)_2SO_4;40{sim}120;g/{ell}$, and operation conditions; pH $2.0{sim}2.5$, current density $15{sim}250;A/dm^2$ at bath temperature range of $30{sim}80^{circ}C$. Bright chromium deposits were obtained over a wide range of ammonium sulfate concentration and bath temperature. Decorative property for chromium deposition was adopted to apply stoichiometric ratio of $CrO_3$ concentration and $H_2C_2O_4{cdot}2H_2O$.