"现代实存哲学" can be translated into English as "Modern Existential Philosophy" or "Contemporary Existential Philosophy".
"Modern" or "Contemporary" both convey the sense of the present era or recent times.
"Existential Philosophy" refers to the philosophical approach that emphasizes individual existence, freedom, and choice, often associated with thinkers like Kierkegaard, Nietzsche, and Sartre.
Both translations are acceptable, and the choice between them may depend on the specific context or emphasis you wish to convey.