Led lighting device with grid type extension structure

PURPOSE: An LED(Light Emitting Diode) lighting device is provided to improve assembling efficiency by combining a core substrate with an LED module substrate through a conductive connecting member. CONSTITUTION: A core substrate(1) has a bar shape. A ground terminal and a power input terminal are formed in both ends of the core substrate. A first and a second via hole are formed in the core substrate. A plurality of LED chips are installed on an LED module substrate(2). A third and a fourth via hole are formed in the LED module substrate. A first conductive connecting member(3) passes through the first and the third via hole. A second conductive connecting member(4) passes through a second and a fourth via hole.