This paper described the status of PV station grid-connected technology,and explained the significance and importance of the research of this technology.Through the field checking for small grid-connected PV station,combining with the test waveform and data,if the network performance indicators are standard was analyzed.PV station designing and grid-connected problems were analyzed in theory,the grid-connectedtechnology of PV station was studied,andspecific improvements were givento make the PV station connect to grid more safety,reliably,standardized.