In view of the difficulties in the prediction and measurement of machining gap temperature distribution in the process of electrochemical machining (ECM), this paper established and analyzed a temperature multiphy-sics coupling model for profile ECM. The turbulence models of SA, k-ε, k-ω, SST and low-Reynolds-number k-ω were used to calculate the flow field distribution, and the temperature distribution was obtained by coupling electrical field, flow field and temperature field. The simulated value was compared with the experimental value. Results show that the near-wall region flow field solution accuracy of the low-Reynolds-number wall treatment is higher than that of the wall-function and the temperature in the ECM gap can reach a quasi-stable state in a relatively short time. The calculated temperature values based on SST and low-Reynolds-number k-ω models are very close to each other, and the simulated temperature values of the model coupled with the bubble rate are closer to the experimental values.