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We firstly report the simultaneous activities of a slipping motion of flareloops and a slipping eruption of a flux rope in 131 {\AA} and 94 {\AA} channelson 2014 February 02. The east hook-like flare ribbon propagated slippingly at aspeed of about 50 km s$^{-1}$, which lasted about 40 min and extended by morethan 100 Mm, but the west flare ribbon moved in the opposite direction with aspeed of 30 km s$^{-1}$. At the later phase of the flare activity, a "bi-fan"system of flare loops was well developed. The east footpoints of the flux ropeshowed an apparent slipping motion along the hook of the ribbon, simultaneouslythe fine structures of the flux rope rose up rapidly at a speed of 130 kms$^{-1}$, much faster the whole flux rope. We infer that the east footpoints ofthe flux rope are successively heated by a slipping magnetic reconnectionduring the flare, which results in the apparent slippage of the flux rope. Theslipping motion delineates a "triangle-flag surface" of the flux rope, implyingthat the topology of a flux rope is more complex than anticipated.

Slipping Magnetic Reconnection Triggering a Solar Eruption of a Triangle-flag Flux Rope