Assembling heat dissipating lighting device

An assembling heat dissipating lighting device, comprising:

• a lamp socket means including an installing space and an installing hole communicated with the installing space, a periphery of the installing hole being formed with an inserting portion and an engaging portion;
• and
• a heat dissipating lighting means including a LED lighting member and a heat dissipating member thermally connected with the LED lighting member, the LED lighting member having a light emitting surface, and an outer ring surface of the LED lighting member having an engaging element corresponding to the inserting portion, and a fastening portion being formed between the engaging element and the light emitting surface,
• wherein the heat dissipating lighting means is fixed to the lamp socket means by disposing the heat dissipating member through the inserting portion into the installing space of the lamp socket means by way of engaging the engaging element into the installing space and correspondingly engaging the fastening portion with the engaging portion by way of rotating the heat dissipating lighting means.