A quantum dot thermoelectric engine consists of a quantum dot embedded between two thermal reservoirs at different temperatures and chemical potentials.Based on stochastic master equation

the steady expressions for the particle current of tunneling electrons between two reservoirs are derived analytically.Moreover

the amount of heat extracted from the reservoirs per unit time

the power output and the efficiency are calculated.The performance characteristics curves between the power output and the efficiency are plotted by numerical simulation.The influence of the applied magnetic field on the performance characteristics of the engine is analyzed.Lastly

the variation of the corresponding efficiency at the maximum power output with the ratio of the temperatures between two reservoirs is discussed and the corresponding efficiency is compared with Carnot efficiency and CA efficiency.