PURPOSE: An LED lighting device with a detachable light transmission cover is provided to reduce manufacturing unit costs and easily attach and detach the cover by forming a combination groove on the side wall of a main body and combining a mounting wing of the light transmission cover with the combination groove. CONSTITUTION: An LED lighting device includes a main body (10) made of a light source mounting unit (11) with a side wall and a radiation unit and a light transmission cover (20) including a light source containing unit and a flange (22) formed around the light source containing unit and combining the light source mounting unit. A detaching means includes a combination groove (14) protruding from the side wall of the main body to the inside; a mounting wing (23) combined with the combination groove at the flange of the light transmission cover; and an elastic band (30) fixing the mounting wing to the combination groove between the main body and the light transmission cover.
