Using a 355-nm laser to pump a home-made double-cladding erbium-doped fiber (DC-EDF), visible and near-infrared fluorescence emissions are obtained. For a 8-m long DC-EDF, visible fluorescence can cover the wavelength region from 375 nm to 800 nm under 429 mW launched pump power, in which the fluorescence peaks are at 397.24, 415.06, 456.30, 497.35, 549.49, 678.26 nm. The near-infrared fluorescence ranges from 1429.25 nm to 1667.75 nm. The peaks and band-widths in the near infrared region are strongly dependent on the length of the DC-EDF. We also observe the broadening of bandwidth when the launched pump power is enhanced. Our results demonstrate that the 355-nm laser can be utilized to pump EDF, which provides a new approach for the traditional EDF light sources. Development of light sources operating at new-wavelength band is possible according to experimental results.