  We study the gauge dependence on the chiral phase transition of Quantum
chromodynamics at finite temperature based on the quenched Schwinger-Dyson
equation. We first solve the equations without approximations at finite
temperature in general gauge, then study the gauge dependence on the critical
temperature of the chiral phase transition. We find that the critical
temperature drastically depends on the choice of the gauge, and the parameters
at the quenched level in the Schwinger-Dyson equations.
