Abstract: A new criterion is established for the oscillation of second order superlinear ordinary differential equations of the formx″(t)+ p(t)x′(t) + q(t)｜x(t)｜αsgnx(t) = 0, t ≥ t₀,where α>1,p and q are continuous functions on [t₀,∞). This criterion extends and unifies some　of the results obtained in [1]- [5]. 

Key words:  , superlinearity, oscillation criterion, second order differential equation ,