Observations from two different aspect angles provide the capability to reconstruct the 3D configuration of solar feature. Previous implementations of solar stereoscopy involved observations either from two satellites or from ground-based combined with space observations. For slowly evolving structures, many studies used the solar rotation as good approximations of parallax angles. The STEREO twin spacecrafts, which were launched on 2006 Oct. 25, provide strictly simultaneous observations for the first time. Therefore sterescopy could be carried out for any solar features regardless of their motion and internal variation. I will present the three-dimensional (3D) configuration of filaments observed by STEREO and the Global High Resolution H-alpha network (GHN) in EUV wavelengths and H-alpha line  center, respectively. The 3D coordinates of multiple tracing points on filament were reconstructed by triangulation from two different aspect angles.In EUV observations, the twine STEREO spacecrafts (A and B) observe the Sun with a separation angle at certain time. While a similar angle was produced using the solar rotation of several hours for the ground-based H-alpha observations.