Easy heat radiation programmable controller box

A control box, in particular to a programming control box convenient for the heat dissipation which overcomes the current technique shortcomings of heat dissipating inefficiency and unreliable working of the programming control box. The programming control box convenient for the heat dissipation comprises a receiver containing chamber disposed inside the box. A semi-conductor cooling piece whose low temperature end is arranged on the inner side of the controller containing chamber is disposed inside the controller containing chamber. The high temperature end of the semi-conductor cooling piece is disposed on the outer wall of the containing chamber. The semi-conductor cooling piece is connected with the power supply. The semi-conductor cooling technique improves the heat dissipating structure of the controller box and ensures the controller stay in the environment with a comparatively low temperature and the stability and reliability.