By “fast and cold tapered technology”, a home-made Microstructure Fiber (MF) is tapered to 8 mm, 10 mm tapered length while keeping d/Λ unchanged. Numerical simulations by multi-pole method show that untapered MF has a single Zero Dispersion Wavelength (ZDW) at 1 129 nm, while after tapering an additional ZDW appears at tapered waist. The two ZDWs of 8 mm and 10 mm-tapered-MF locate at 806 nm/2 456 nm and 637 nm/1 164 nm, respectively. When pumped by ultrafast pulse with center wavelength at 800 nm and average energy of 0.45 W, 8 mm-tapered-MF generates supercontinuum at range of 378 nm～1 632 nm and 1 777 nm～2 450 nm with 20 dB flatness. In 10 mm-tapered-MF, redshift of Raman soliton and supercontinuum is hindered by its second ZDW at 1 164 nm. However, the blue shift efficiency of bump energy is enhanced. When pump power reaches 0.5 W, up to 70.5% of pump energy is unconverted to 395 nm~ 475 nm.