The invention provides a photo-catalytic air filter and method for making the same. The photo-catalytic air filter comprises: a housing having a channel, a photo-catalytic film provided in the charnel, a LED module having a plurality of light emitting diodes and provided at a position where light from the LED module can irradiate the photo-catalytic film, a fan provided at one end of the channel to withdraw external air from the other end of the channel into the channel or withdraw external air from the same end as the fan.本發明提供一種光觸媒空氣濾清器及其製造方法,該光觸媒空氣濾清器包括:一外殼,包括一通道;一光觸媒薄膜,設置於該通道中;一發光二極體模組,使該發光二極體模組發出的光有效地照射該光觸媒薄膜而設置於該通道中,其中該發光二極體模組包含複數紫外線發光的發光二極體;一風扇,設置於該通道的一端,用以由該通道的另一端,吸入外部空氣,或者由設置該風扇的一端吸入外部空氣。100‧‧‧外殼200‧‧‧通道210‧‧‧通道的另一端220‧‧‧通道的一端300‧‧‧光觸媒薄膜400‧‧‧發光二極體模組500‧‧‧風扇600‧‧‧驅動電路
