Research has been conducted on the partnership pattern of beef cattle fattening businesses in Semarang District, Central Java Province from August 2021 to July 2022. It aimed to look at production costs, profits, profit sharing, satisfaction, convenience, and benefits for farmers. There were three rearing patterns. Pattern 1 (partnership pattern 1): Investors cover the production costs of cattle breeds and concentrates. Farmers provide grass, cowshed, and labor. Pattern 2 (partnership pattern 2): Investors cover the cost of producing cattle breeds. Farmers provide concentrates, grass, cowshed, and labor. Pattern 3: independent farmers. The research method was a survey through interviews with investors, farmers, and observations of fattened cattle. Twenty-seven Simental cattle breeds were used in this research that involved 18 farmers. The collected data included feeding, weight gain, production costs, profits, profit sharing, and participants’ responses to partnership patterns. The obtained data were analysed descriptively. The research results showed the average weight gain/head/day for Patterns 1, 2, and 3 were 1.02, 1.01, and 0.97 kg, and benifit each IDR 1,119,390/month, IDR 1,120,000/month, and IDR 1,212,020/month was earned. Compared to the partnership pattern, the response of independent farmers was the highest since it was the most satisfying, the easiest, and provides the most benefits.