This brief aims to alert educators to the special education needs of migrant children with disabilities. In 1991, the Migrant Student Record Transfer System (MSRTS) identified 711,696 migrant children, ages 0-21. The "at-risk" characteristics of the migrant family's health, working, and living conditions suggest that a representative number of migrant children should be served by special education programs around the country. However, several studies from 1979-90 have consistently shown that disabled migrant children are underidentified for special education services. Questions about the incidence of disabilities among migrant students are confounded by lack of basic information about migrant workers and migrant students. Only 17 state databases use migrant as an identifier. In the MSRTS, the proportion of migrant children reported as disabled rose from less than 1% in 1980-81 to 5.4% in 1989-90, compared to a 10-12% incidence figure for the nation. Recommendations are offered for identifying the special education needs of migrant students, promoting interstate and intrastate communication to ensure continuity of services, addressing the educational needs of disabled migrant students, dropout prevention, parent involvement, and meeting the health needs of migrant students. The drawbacks of categorization and "pullout" programs for at-risk students are discussed. (SV)