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An optimal selection model of the lurk orbit on which a satellite will park waiting for instructions aiming at a non-cooperative space target is presented. The model uses factors including orbit maneuver satisfaction degree in special cases and orbit utilization value in ordinary uses taking into account orbit maintenance cost, orbit availability and the resulting elusiveness. These factors are derived from dynamics characteristics of the space target orbit and the optional lurk orbits. The model is employed to select the optimal lurk orbit from several optional orbits for a satellite taking aim at a non-cooperative space target so as to secure ordinary utilization and effective respond when receiving instruction to perform tasks concerning the space target. In the presented work, lurk orbit selection processes in an application example are analyzed using the model. It is seen that the optimal selection model effectively solves lurk orbit selection