This article chooses GTJA controlling Boya Biotechnology Company as a case，aiming to find out potential behavioral logic and strategy selection of private equity dominating IPO.It finds out that majority control not only can change relative control rights disadvantage of private equity，but also supplies enough incentives for better corporate governance and operation performance，then IPO process accelerates.After IPO，it is a better strategy for private equity investments to hold shares and engage in capital market operations，because assets restructuring can achieve a broader economic interests.Above all，this article regards controlling before IPO and long term holding after IPO as another important profit pattern for private equity investment in Chinas context.