Under a degenerate two-photon resonant excitation, the Rabi oscillation of the four-level biexciton system in a semiconductor quantum dot is theoretically investigated.The influence of the laser Soup Bowls phases on the state manipulation is modeled and numerically calculated.Due to the interference between different excitation paths, the laser phase plays an important role and can be utilized as an alternate control knob to coherently manipulate the biexciton state.The phase control can Skirts be facilely implemented by changing the light polarization via a quarter-wave plate.