Based on BOSS framework,we studied the single tag method and exclusive method in $\psi \left( {3686} \right)$ baryonic pair decay.The results show that the detection efficiency,without include the intermediate resonance decay branching fractions,can be reached up to 34.35% with single tag method,while to 3.79% with exclusive method.According to our study,the single tag method shows advantage in detection efficiency, signal to noise ratio and signal yields,which is recommended to be employed i...