Harlan Julien Emery, 76, a retired director of the livestock and dairy policy staff of the Agricultural Stabilization and Conservation Service died of emphysema Wednesday at Arlington Hospital.

Mr. Emery, who lived in Falls Church, came to Washington in 1934, joined the Department of Agriculture in that year, and remained with it until his retirement in 1969.

During the 1930s, he worked in the Agricultural Adjustment Administration. During World War II, he was director of the manufactured dairy products division in the department and also worked on the food aspects of the Lend Lease Program.

Mr. Emery also helped revise standards for grading dairy products and wool and in the 1950s helped develop price support programs for dairy products and livestock commodities.

He later was named director of the livestock and dairy policy staff in the Agricultural Stabilization and Conservation Service.

He was the author of "Dairy Price Support and Related Programs, 1949-1968," a standard reference on the subject.

After leaving the government, Mr. Emery was a private economic consultant.

Mr. Emery was born in Bar Harbor, Me., and grew up on a dairy farm there. He earned a bachelor's degree in dairy science at the University of Maine and then taught high school in Holton, Me., for two years. He earned a master's degree in agricultural economics at Oregon State College and then did three more years of graduate work at the University of California at Berkeley.

While at Berkeley, he met Gwenydd Kathleen Lewis. They were married in 1932. Mr. Emery worked for the Federal Land Bank in California for a year before moving to Washington to begin his career at Agriculture.

Mr. Emery's hobbies included fishing. He was a member of the Rock Spring Congregational Church in Arlington.

In addition to his wife, of Falls Church, survivors include three sons, Stephen J. and Rockwell L., both of Arlington, and Donald H., of Blacksburg, Va.; two brothers, Charles, of Farmington Hills, Mich., and Newell, of Bar Harbor, and four grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Potomac Lung Association, 9735 Main Street, P.o. Box 277, Fairfax, 22030.