  We study the ground state phase diagram and the quantum phase transitions in
spin-1 Bose gases with Raman induced spin-orbit coupling. In addition to the
Bose-Einstein condensates with uniform density, three types of stripe
condensation phases that simultaneously break the U(1) symmetry and the
translation symmetry are identified. The transitions between these phases are
investigated, and the occurrences of the various tricritical points are
predicted. The excitation spectra in the plane-wave phase and the zero-momentum
phase show rich roton-maxon structures, and their instabilities indicate the
tendency to develop the crystalline order. We propose the atomic gas of
$^{23}$Na could be a candidate for observing the stripe condensate with high
contrast fringes.
