Human resources refer to the sum of physical strength, intelligence, and mental effort that can be directly invested in the labor production process and the basic qualities they form, including physical and mental qualities such as knowledge, skills, experience, character, and attitude.

Human connections, that is, interpersonal relationships, interpersonal networks, reflect people's popularity and social relationships. Carnegie, the former billionaire steel magnate in the United States, once said: "80% of a person's success depends on connections and 20% on knowledge."

I think by comparing them like this, you should be able to understand the difference between the two more clearly.

Wish you good luck and happy cooperation!