The invention provides an efficient heat dissipation embedded stove and an embedded stove heat dissipation method and relates to the technical field of kitchen appliances. According to the efficient heat dissipation embedded stove, an air inlet channel and an air outlet channel are formed between the stove and a cupboard; the stove comprises a cooking chamber and an electric apparatus room; an airoutlet is formed in the top of the cooking chamber, and an on-off valve assembly is arranged at the air outlet; when the on-off valve assembly is closed, air enters the electric apparatus room from the air inlet channel and flows into the air outlet channel from the interior of the electric apparatus room so as to be discharged; and when the on-off valve assembly is switched on, air enters the electric apparatus room from the air inlet channel, one part of the air flows into the air outlet channel from the interior of the electric apparatus room, and the other part of the air enters the cooking chamber via an air hole and flows into the air outlet channel through the air outlet so as to be discharged. Therefore, the problems in the traditional embedded stove that the air inlet is formed in the rear side of the cupboard so as to increase the cost and influence internal cleanness and the internal temperature cannot be effectively reduced are solved.