The invention belongs to the technical field of dish washer control, and provides a dish washer, and a heating wash protection and control method and a heating wash protection and control device thereof. The heating wash protection and control method of the dish washer includes: when the dish washer is in a heating wash state, connecting a washing pump with a power source so as to power on the washing pump and enable the washing pump to work, and then detecting whether a pressure switch is closed, if yes, connecting the pressure switch with the power source so as to power on a heating device and enable the heating device to work, or if no, counting the number of detection times, and judging whether count data reaches a preset number of the direction times, if no, continuing to connect the washing pump with the power source so as to power on the washing pump and enable the washing pump to work, and detecting whether the pressure switch is closed, or if yes, disconnecting a circuit between the washing pump and the power source so as to enable the washing pump to stop work, disconnecting a circuit between the pressure switch and the power source, and controlling the dish washer to send out an alarm prompt. Accordingly, power-off protection is achieved for the heating device and the washing pump when the dish washer is short of water or does not contain water and / or the washing pump can not run due to abnormity, and maintenance frequency and maintenance cost are reduced.