The present invention is to provide an electric junction box having an enhanced watertight performance by easily winding a fixing member from a guide portion to a plurality of electric wires. The electric junction box includes a box main body and a tubular guide portion projecting from the box main body and guiding the electric wires to an outside of the box main body. A fixing member is continuously wound from the guide portion to the electric wires after the electric wires are passed through the inside of the guide portion. The guide portion includes a rib projected outward from the guide portion for preventing displacement of the fixing member. The rib is separated from the end portion of the guide portion away from the box main body.