Martin S. Becker, 53, judge of the Montgomery County District Court since 1976 and a former member of the Maryland House of Delegates from Montgomery County, died of a heart attack Thursday at Holy Cross Hospital in Silver Spring.

In 1976, Judge Becker, a Democrat, was appointed to Maryland's 6th District Court by then-Gov. Marvin Mandel (D-Md). He replaced J. Hodge Smith, who retired in August of that year.

Judge Becker was elected to the Maryland House of Delegates from the Silver Spring area in 1967 and served for five years as chairman of the House Economic Matters Committee, which handles legislation affecting consumer affairs and interest rates. He also served as chairman of the Montgomery County delegation in 1971 and was a member for six years of the Maryland General Assembly's Legislative Council.

He also served as chairman of the House Judiciary Committee and a medical malpractice insurance study committee. In 1970, Gov. Mandel named him chairman of a 12-member commission to study Maryland's mechanics lien laws.

Judge Becker was born and reared in Washington. He attended Emory and Henry College in Virginia and the University of Virginia and earned a law degree from George Washington Univesity's law school. He conducted a private law practice for many years before being appointed to the bench.

He served in the Navy from 1944 to 1947 and was stationed in China.

Judge Becker was a former officer of the Young Democratic Club of Montgomery County, a member and former legal counsel of the Silver Spring Junior Chamber of Commerce and a member of the Wheaton Rescue Squad. He was a member of the American, Maryland and Montgomery County bar associations.

Survivors include his wife, Etta Nezin Becker and two daughters, Leslie Anne and Nancy Lee, all of the home in Silver Spring, and his father, David, of Rockville.

The family requests that expressions of sympathy be in the form of contributions to the Wheaton Rescue Squad.