The invention discloses an intelligent cooking control method based on an oxygen sensor. The method comprises the following steps: 1, stably outputting a 220V AC voltage; 2, starting to work accordingto a preset Phold; 3, calculating a temperature gradient Kt = (Tc1-Tc0)/(t1-t0); 4, judging whether Kt is equal to a set value or not: if yes, executing the next step, or else, executing the step 6;5, working according to the set Phold, and executing the step 9; 6, judging whether Kt is less than Kt or not: if yes, executing the next step, or else, executing the step 8; 7, working at high powerPmax, and executing the step 9; 8, working at low power Pmin, and executing the step 9; 9, judging whether the oxygen content reaches M or not: if so, executing the next step, or else, returning to the step 3; 10, ending cooking. The method has the advantages that the heating power is adjusted in real time, food is rapidly heated, dynamic and intelligent control over cooking is achieved, and it isguaranteed that cooking is rapidly and well completed.