The utility model discloses an eccentric junk mill of coiled tubing milling, including the junk mill body, junk mill body upper portion is the top connection, and the middle part is symmetrical junk mill body, and the lower part is eccentric junk mill body, and eccentric junk mill body terminal surface welding carbide is provided with the hydrophthalmia on the terminal surface, corresponds the hydrophthalmia and radially is provided with liquid circulation channel along the carbide terminal surface, liquid circulation channel and hydrophthalmia intercommunication, hydrophthalmia and junk mill body inner chamber intercommunication, set up liquid circulation channel, last liquid circulation channel and the intercommunication of the liquid circulation channel on the eccentric junk mill body of carbide along the axial correspondence on the eccentric junk mill body. The utility model discloses can be in straight well, highly deviated well or horizontal well milling casing deformation position or estimate on earth that the bridging plug position is bored and grind the bridging plug operation through being out of shape the position, remove quick the boring of bridging plug, guarantee that the pit shaft is unblocked.