Disclosed is a street light lamp with a block-type assembly structure. The street light lamp with a block-type assembly structure of the present invention comprises: a power supply unit combined with an arm wherein a power supply apparatus is installed; and a lighting unit combined with the power supply unit wherein a light source connected to the power supply apparatus with wiring is installed. The lighting unit comprises one or more lighting modules which respectively have a light source and which may serially be connected. According to the present invention, the street light lamp of the present invention is applicable to a broad light distribution regulation, and is able to keep an efficiency of heat radiation at a higher level than a conventional one; to easily have a smart function such as IoT, security camera, and wireless communication; and to be adapted and installed in a variety of arm sizes and various shapes of arm end units.
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