A cluster-type fluid-conducting pipe connecting device includes a base section a retaining ring fitted to a front of the base section and turnable from a closed position to an open position the retaining ring and the base section being correspondingly provided at a front end with fixing slots and connection slots, respectively, and a sideward locating slot being formed at a rear end of each fixing slot a reset structure enabling the retaining ring to automatically return from the open position to the closed position and a connector having a forward pipe engaging section for fluid-conducting pipes to connect thereto, and a rearward plug section for inserting into the base section and externally provided with stubs that slide into the connection and fixing slots while the retaining ring is in the open position and are locked in the locating slots while the retaining ring is in the closed position.
