The discussion of corpus planning for the Southern Quechua language variety of Peru examines issues of graphization, standardization, modernization, and renovation of Quechua in the face of increasing domination by the Spanish language. The efforts of three major groups of linguists and other scholars working on language planning in Peru, and the successes and difficulties they have encountered or created in their work, are described. Several recommendations are made for Quechua research, planning, and maintenance, including formation of an interdisciplinary commission to study and strengthen terminology, application of the Pan-Quechua alphabet, promotion of translation into Quechua for the native-speaking population, creation of an academic institute to teach Quechua, promotion of Quechua courses in higher education, and intercultural bilingual education in native Quechua-speaking areas. Appended materials include a classification of dialects, notes on the three linguist groups, proposed graphization systems, and examples of modernized Quechua words. Contains 30 references. (MSE)