Kseniya Boguslavskaya was a member of the creative association of avant-garde artists Supremus. From 1913 she was married to Ivan Puni. Their apartment and studio at the address 1/56, Gatchinskaya Street in St. Petersburg, where they lived from 1913 to 1915, was a venue for meetings of artists and poets, avant-gardists and futurists.
Kseniya Boguslavskaya studied at the Drawing School of the Society for Encouragement of Arts. In 1911 - 1913 she lived in Paris, where she studied in the Russian Academy and made her living by painting patterns for fabrics for the company of Paul Poiret. In 1913the beginning artist returned to St. Petersburg and soon took part in the first futuristic exhibition (1915), exhibitions of the Jack of Diamonds association (1919) and The World of Art (1916 - 1918), etc.
In those years Kseniya Boguslavskaya published the collection Roaring Parnassus at her own expense. It included poems by Igor Severyanin, Nikolai and David Burliuk, Ivan Puni, Benedikt Livshits, and others. The collection of avant-garde poetry was banned by censorship.
In 1915 Kseniya Boguslavskaya and her husband Ivan Puni organized the exhibitions Tram "B" and 0,10 presenting the most vivid avant-gardists (futurists, abstractionists and the like) in Petrograd. The Punis proclaimed “subject’s freedom from reason”.
In 1919 the poetess immigrated to Berlin via Finland. She designed covers for German and Russian publishing houses, as well as scenery for the Bluebird of Happiness cabaret theater and the Russian Romantic Theater. Kseniya Boguslavskaya participated in the 1st Russian Art Exhibition in Berlin in 1922.
From 1924 she lived in Paris. In 1925 she exhibited her works at a joint exhibition with her husband in the Barbazanges Gallery. She was also engaged fashion design and fabric patterns for different companies. She participated in art salons of The Independent (1966) and The New Realities (Vincennes, Parc Floral, 1972).
She also helped organizing exhibitions of Ivan Puni in Musée de l’Orangerie (1966) and Passali Gallery (1974). In 1959 she presented 12 paintings by her husband to the Paris Museum of Modern Art and handed his engraving and documents over to the National Library in 1966.