Lifting Cradles are widely used for high-rise buildings construction. In order to ensure safe, the following operating rules should be followed: the counter weights must reach the number, and be fixed firmly. The steel wire rope should be maintained according to requirements. The safety locks should be tested before installation and must ensure that the safety lock is complete, effective and sensitive. The lifting cradles shall be installed in strict accordance with the relevant requirements of instruction manual. The strength and material of steel wire rope must be qualified. And the limit switches, travel limit baffle must be effective. People working at height must wear safety protective equipment correctly.