The invention relates to a drill bit with a flexible nozzle that is used in drilling engineering. The drill bit can be washed and cooled better; the drill bit can clean well-bottom rock debris and assist rock breaking better. The technical solution comprises that the flexible nozzle is connected with the drill bit at the nozzle hole of the bit; the flexible nozzle is provided with a drilling liquid spraying hole which communicates the internal flow channel of the drill bit with the external space of the drill bit; the flexible nozzle consists of a joint connected with the drill bit and a flexible spray pipe; the flexible spray pipe comprises one of a metal tube, a rubber tube and a plastic tube; or the flexible spray pipe is formed by compounding two or three tubes above. The flexible nozzle employs a tube with continuous tube wall or a tube with incontinuous tube wall. The flexible nozzle of the invention can obviously shorten the distance between the drill bit nozzle outlet and the well bottom, thereby reducing energy loss of drilling liquid jet current; the flexible nozzle of the invention can enlarge working area of the jet current at the well bottom and cause pulsation effectat the well bottom; the nozzle outlet direction can be adjusted to realize functions such as positioned ejection and insequent ejection; and the flexible nozzle has excellent anti-breaking capabilityand high reliability.