The talk contains two parts: 1) In order to study how the AGN outflow or feedback affect the galaxy evolution, we selected a sample of double-peaked emission line active galaxies, which include AGN, SF and AGN+SF galaxies. According to the NIR and short-wavelength-band IFU observations, most of the double-peaked AGNs are produced by outflow. We first study the basic properties of these sources using spectra obtained from SDSS 3'' diameter fiber, which allow us to have a rough understanding of AGN outflows. However, IFU observations are required to study the detailed mechanisms. Currently MaNGA survey has been started, which allows us to finish our goal. 2) For the galaxy evolution study, we also start from another way. We use the CALIFA data to study the stellar mass-to-light ratio of elliptical galaxies, and found all of them have negative gradients. And these gradients vary with different stellar masses, ages and metallicities. This is very important for studying galaxy dynamical modeling with photometry data, because there will be systematic bias when assuming a constant stellar mass-to-light ratio, and the bias vary for different galaxies. If we can apply the stellar mass to light ratio obtained from IFU data, the black hole mass and dark matter distribution will be measured more precisely, then the galaxy evolution can be interpreted in a more precise way.