To understand what has been happening to women's employment in agriculture, this paper presents the findings of a study in Haryana, a state where labour absorption rose rapidly until the mid-seventies, but is now falling. The one-year field survey, covering 153 villages in all, was carried out in 1972-73, that is, during the expansionary phase of labour absorption in Haryana agriculture. The findings deal with the demand for women workers in field crop operations and the supply behaviour of cultivating and landless agricultural labour households. Data relating to the occupational structure of female member's of cultivating and landless agricultural labour households are examined and an account is given of the seasonal occupational shift phenomenon, a dominant feature of the annual cycle of employment among landless women which has been very little discussed in the literature on the impact of the 'Green Revolution' on women's work. The paper concludes with some speculations about what may have happened in the period after the mid-seventies which was characterised, among other things, by a decline in per hectare labour absorption in the cases of most crops.