A method for mass production of summer short-day strawberry is disclosed. In the method, strawberry plants in production season wasted in April every year in the field of Taiwan are moved in a fully closed type temperature control environment capable of controlling temperature, humidity, carbon dioxide (CO2) concentration and lighting. The strawberry plants are moved under sunlight after being processed by a low-temperature short-day flower forcing treatment, newborn spray tips of the strawberry plants are covered by semi-closed containers, and a sterilized, temperature-controlled and humidity-controlled air is continuously introduced into the containers by pipes, thereby maintaining the newborn spray tips of the strawberry plants at proper low temperature and humidity to lastingly blossom and bear fruit. In addition, roots of the strawberry plants are covered with semi-closed containers by a temperature-controlled cultivation device, to lower the root temperature of the strawberry plants for normal growth in summer season. Also, with the sterilized oxygen introduced into the containers to provide sufficient oxygen to the roots of the strawberry plants for respiration, the nutrient absorption capability of the roots of the strawberry plants can be promoted, thereby achieving the purpose of the method for mass production of short-day strawberries in summer.
