Multi-groove pagoda drill bit

A multi-groove pagoda drill bit, comprising a tapered body, and a circumferential wall of the tapered body being provided with a diameter-expanding step increasing in diameter from front to back, wherein a plurality of primary helical grooves extending from a rear end to a front end and a plurality of secondary helical grooves extending from the rear end to close to the front end are opened on the circumferential wall of the tapered body, an axial cutting blade same as a cutting trajectory is disposed on groove mouths of the primary helical grooves and the secondary helical grooves, a front recess segment located at a side of a line connecting an edge tip and an axis and close to the edge tip is disposed in the groove mouths of the primary helical grooves and the secondary helical grooves on a radial section of the tapered body, and a recessing depth of the front recess segments relative to the connection lines is 0.1 to 1 mm.