"I-You"relationship in Gadamer's hermeneutic philosophy is the condition for understanding and interpretation,embodying the consciousness of effective history,which is the soul of his hermeneutic philosophy."I-You"relationship by Gadamer subverts the traditional subject-object relationship in epistemology and hermeneutics,restoring the historicity of understanding.It transforms the one-way subject-object relationship and the interpretation activities centered on restoring the original meaning of texts into an interactive"I-You"relationship between the interpreter and the interpreted."I-You"relationship permeates all essential dimensions of Gadamer's hermeneutic philosophy,highlighting its ethical and practical nature.However,Lévinas argues that Gadamer's"I-You"relationship,like Martin Buber's,does not fully capture the irreducibility and alterity of the"You"or the Other,yet Lévinas overlooks the historically contingent nature of the relationship between the self and the Other."I-You"relationship in Gadamer's philosophy is not only significant for hermeneutics but also reflects a strong characteristic of relational philosophy and ethical practice philosophy within the phenomenological movement of the hermeneutic philosophy.