Disclosed is a loader neutral gear start limiting device which is suitable for preventing a wheel loader from starting under neutral gear status, and eliminating existing potential safety hazards. The loader neutral gear start limiting device is characterized in that a support body (1) and a pin shaft fixing frame (2) are assembled together, a position switch (6) is fixed on the pin shaft fixing frame (2) and connected with a loader start circuit in series, a connection shaft (4) installed in the pin shaft fixing frame (2) can lengthways move, a groove (8) is formed in the connection shaft (4), the groove can be contacted with a steel ball (3) installed right below the position switch (6), and the connection shaft (4) is connected with a loader gear shift valve through a universal buckle (5). When the loader is under the neutral gear status, the groove (8) is contacted with the steel ball (3), and then the position switch is in an on state, and the loader is started. When the loader is located at other gear positions, the steel ball (3) is contacted with other components on the connection shaft (4), the position switch (6) is in an off state, and the loader can not be started. The loader neutral gear start limiting device is simple in structure and convenient to install, and obviously improves a security coefficient of the loader.