In response to the increasing needs for the advancement of knowledge in the province, Holy Angel University opened the Graduate School in 1961. The first program offered was the Master of Arts in Education. The program was granted government recognition on October 30, 1970.
In 1993, Master of Arts in Education major in College Teaching, Master of Arts in Education major in English Teaching, and Master of Business Management were offered. These were followed by the offering of Master of Arts major in Library Science, Master of Arts major in Mathematics, and Master in Public Administration in 1994. In the SY 1996-97, the University offered Doctor of Philosophy in Management major in Business Management, Educational Management, and Public Management.
On October 27, 2003, the Commission on Higher Education conferred the Autonomous Status to Holy Angel University which formalized the recognition of the programs, namely: Master in Engineering Program major in Electrical Engineering and Industrial Engineering, Doctor of Philosophy in Educational Management, Doctor of Business Management, and Master of Arts in Nursing.
Aside from offering academic programs, the Graduate School takes an active role in organizing and facilitating seminars and training for academic institutions, industry and government agencies.
The Graduate School Publication was created to serve as an avenue for the expression of opinions and ideas of the faculty and students.
In the SY 2005-06, Master of Science in Accountancy was offered to develop practitioners of accounting related functions with a high level of theoretical knowledge on advanced accounting and research principles. Master of Science in Engineering Management was also offered for managers in the engineering field to expose them to engineering and business aspects of technology. Furthermore, the school year marked the opening of Master in Public Administration – Government Elected Officials and Extension Programs. Two local government units became its learning centers, namely Angeles City Local Government and Capas Local Government.
During the same school year, the research activities of the University have been housed in the Graduate School under the leadership of the Dean, Dr. Arlyn S. Villanueva. With her are the Program Coordinators, representing each College, who are deputized to coordinate all research activities. Likewise, the programs of the Graduate School adopted the modular system of class scheduling.
In June 2006, the Commission on Higher Education, thru the Higher Education Development Project – Faculty Development Program (HEDP-FDP), recognized the University with its Master in Engineering Program as one of the Higher Education Institutions delivering engineering programs in the Philippines.
The Master of Business Management and Master in Educational Management majors in Guidance and Counseling, Library Science and Science Teaching programs had undergone accreditation on September 1 and 2, 2006 conducted by the Philippine Accrediting Association of Schools, Colleges and Universities (PAASCU) in the areas of Faculty, Curriculum and Instruction, Research, Students, Library, Administration and Other Resources.
In keeping with its vision and mission of making the Graduate School the center of excellence in graduate education in the Asia-Pacific Region in the fields of business, education, engineering and nursing, the Graduate School has applied for international accreditation to the International Assembly for Collegiate Business Education (IACBE) for its Master of Business Management and Doctor of Business Management Programs in the areas of Curriculum, Faculty, Scholarly and Professional Activities, Resources, Business and Industry Relations, Educational Innovation, Articulation and Transfer Relationships and International Programs.