Photovoltaic module and temperature detection method and temperature detection system thereof

The invention discloses a photovoltaic module and a temperature detection method and a temperature detection system thereof, and relates to the technical field of photovoltaic modules, the photovoltaic module comprises a cover plate, a battery string and a transparent backboard, two sides of the battery string are respectively connected with the cover plate and the transparent backboard through adhesive films, and a plurality of temperature change modules are arranged between the cover plate and the transparent backboard. The plurality of temperature change modules are respectively arranged at the edge and the middle position of the transparent back plate, each temperature change module and the battery string are arranged in a staggered manner, and the temperature change modules are used for changing different colors along with different temperatures of the battery string; according to the invention, the plurality of temperature change modules are arranged between the cover plate and the transparent back plat