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In the current study, we identified a transcription factor, <i>MYB14</i>, from Chinese wild grape, <i>Vitis quinquangularis</i>-Pingyi (<i>V. quinquangularis</i>-PY), which could enhance the main stilbene contents and expression of stilbene biosynthesis genes (<i>StSy</i>/<i>RS</i>) by overexpression of <i>VqMYB14</i>. The promoter of <i>VqMYB14</i> (<i>pVqMYB14</i>) was shown to be induced as part of both basal immunity (also called pathogen-associated molecular pattern (PAMP)-triggered immunity, PTI) and effector-triggered immunity (ETI), triggered by the elicitors flg22 and harpin, respectively. This was demonstrated by expression of <i>pVqMYB14</i> in <i>Nicotiana benthamiana</i> and <i>Vitis</i>. We identified sequence differences, notably an 11 bp segment in <i>pVqMYB14</i> that is important for the PTI/ETI, and particularly for the harpin-induced ETI response. In addition, we showed that activation of the <i>MYB14</i> promoter correlates with differences in the expression of <i>MYB14</i> and stilbene pattern induced by flg22 and harpin. An experimental model of upstream signaling in <i>V. quinquangularis</i>-PY is presented, where early defense responses triggered by flg22 and harpin partially overlap, but where the timing and levels differ. This translates into a qualitative difference with respect to patterns of stilbene accumulation.