The mother of Anatoly Scharansky, the imprisoned dissident, said today she has received no evidence that he has ended his five-month hunger strike.

Ida P. Milgrom said that in the course of an unsuccessful effort to visit him earlier this month he passed her a brief, partially censored note saying he would end the fast if prison authorities allowed him to receive a letter from her. She did send him a letter and said today, "We are now anxiously awaiting" word from him acknowledging receipt. In his earlier note he had told her he would write the note on Jan. 25 or 26.

Milgrom disclosed the passing of the communications after reports from Paris quoted Georges Marchais, the French Communist Party leader, as saying that Scharanksy had ended his stike.

Milgrom, 74, who visited the prison earlier this month, was told by prison authorities that her son was being force-fed two or three times a week. Scharansky was to be hospitalized only after he ended the strike, she was told.

Marchais said in a radio interview that he had received a letter from Soviet leader Yuri Andropov assuring him that Scharansky's protest had ended and that "nothing endangers his life." Marchais said the letter was dated Jan. 21.

Scharansky, who was sentenced to 13 years in prison camp more than four years ago on charges of spying for the United States, began the hunger strike on Sept. 27 to protest a decision by prison authorities to cut off his correspondece with members of his family. Prison regulations allow him to send and receive one letter per month.

Milgrom, who had written to her son after her abortive visit to Christopol prison, about 500 miles east of here, said only a letter from him could confirm that he had ended his protest.

The prison warden would not allow Milgrom, or her other son Leonid, to see Scharansky this month on the ground that he was continuing his hunger strike.