The utility model relates to a spring floating type float casing collar, belongs to the technical field of float casing collars of casing and cementing projects in the oil drilling industry and aims to solve the problem of low reliability of existing spring type float collars of the prior art. The spring floating type float casing collar comprises a shell, a valve seat, a valve ball, a basket, a spring and a ball holder. The shell is of tubular structure and provided with connecting threads at two ends, the basket is of barrel-shaped structure, the bottom of the basket is provided with an inner shoulder and a center through hole, the side wall of the basket is provided with through grooves or radial through holes, and the upper portion of the basket is connected with the lower portion of the valve seat. The spring, the ball holder and the valve ball are sequentially mounted on the inner shoulder at the cavity bottom of the basket from bottom to top. The valve ball is of ball structure and is rotatable optionally. The valve seat is fixed in the cavity of the shell on the upper portion of the valve ball, the center of the valve seat is provided with a through hole, and an inner bevel surface is arranged on the lower portion of the through hole. The spring floating type float casing collar has the advantages of high reset force, scouring resistance, impact resistance, high sealing reliability and the like, cement paste can be effectively prevented from being poured into a casing, and the technical requirements of cementing can be sufficiently met.