A double oil passage structure of a steering motor, comprising an oil distributor, the oil distributor being provided with an oil inlet; characterized in that: the double oil passage structure further comprises an upper cover buffering assembly; the oil distributor is arranged under the upper cover buffering assembly, and is fitted with the upper cover buffering assembly to form a sealed axial cavity; the oil distributor is provided with an oil flow passage arranged radially and in communication with the axial cavity; a hollow column that is arranged axially with an inner cavity extends upwards and downwards respectively inside the oil distributor; an inner wall of the hollow column is provided with an oil flow opening in communication the oil flow passage; an inner side of the hollow column is provided with a reversing valve which has a valve core; an inner sidewall of the hollow column and an outer wall of the reversing cavity form a first radial cavity; the first radial cavity is embedded with a pin; the first radial cavity is separated by the pin to form an oil-distributor oil-inlet cavity and an oil-distributor oil-outlet cavity which are independent from each other; the oil-distributor oil-inlet cavity is in communication with the oil inlet, and the oil-distributor oil-outlet cavity is in communication with the axial cavity; an upper portion of a sidewall of the valve cavity is provided with a reversing-valve oil-flow passage arranged to penetrate radially, and an axial lower portion of the reversing-valve oil-flow passage is provided with an oil flow hole arranged radially; an oil-flow ring slot with a semicircle shaped section is arranged around an outer wall of an upper end of the valve core, and the oil-flow ring slot is in communication with the oil-distributor oil-inlet cavity and the oil-distributor oil-outlet cavity; an outer wall of a lower end of the valve core and a sidewall of a lower portion of the valve cavity form a second radial cavity; a lower portion of the valve cavity is provided with an oil outlet; the oil outlet is in communication with the second radial cavity. the double oil passage structure further comprises an upper cover buffering assembly; the oil distributor is arranged under the upper cover buffering assembly, and is fitted with the upper cover buffering assembly to form a sealed axial cavity; the oil distributor is provided with an oil flow passage arranged radially and in communication with the axial cavity; a hollow column that is arranged axially with an inner cavity extends upwards and downwards respectively inside the oil distributor; an inner wall of the hollow column is provided with an oil flow opening in communication the oil flow passage; an inner side of the hollow column is provided with a reversing valve which has a valve core; an inner sidewall of the hollow column and an outer wall of the reversing cavity form a first radial cavity; the first radial cavity is embedded with a pin; the first radial cavity is separated by the pin to form an oil-distributor oil-inlet cavity and an oil-distributor oil-outlet cavity which are independent from each other; the oil-distributor oil-inlet cavity is in communication with the oil inlet, and the oil-distributor oil-outlet cavity is in communication with the axial cavity; an upper portion of a sidewall of the valve cavity is provided with a reversing-valve oil-flow passage arranged to penetrate radially, and an axial lower portion of the reversing-valve oil-flow passage is provided with an oil flow hole arranged radially; an oil-flow ring slot with a semicircle shaped section is arranged around an outer wall of an upper end of the valve core, and the oil-flow ring slot is in communication with the oil-distributor oil-inlet cavity and the oil-distributor oil-outlet cavity; an outer wall of a lower end of the valve core and a sidewall of a lower portion of the valve cavity form a second radial cavity; a lower portion of the valve cavity is provided with an oil outlet; the oil outlet is in communication with the second radial cavity.