The governing Liberal Party led by Premier Kathleen Wynne was decimated, winning only 7 out of the 124 seats in the legislature and being reduced to third-place status.

The Green Party won its first seat in history, with leader Mike Schreiner becoming its first Member of Provincial Parliament (MPP).

The budget recorded a deficit of $19.9 billion and promised substantial spending on infrastructure (including for their proposed Highway 413) and tax breaks for some workers and seniors.

[10] On May 3, 2022, Premier Doug Ford met with the Lieutenant Governor of Ontario to advise dissolution of the legislature and for writs of election be drawn up.

The main five themes it emphasized were: growing the clean energy economy with minerals from the Ring of Fire, building infrastructure including Highway 413, the Bradford Bypass and expanding GO service, supporting workers by funding more skilled trades programs, raising the minimum hourly wage to $15 and allowing universities to issue three-year degrees, lowering taxes by eliminating license plate stickers, eliminating tolls and reducing housing development fees and lastly to avoid future COVID-19 lockdowns by hiring more healthcare workers..[70] The Official Opposition NDP's campaign focused on increased funding for social programs and government services, which would be paid for through higher taxes on businesses and individuals earning over $200,000 per year.

The NDP also proposed to expand COVID-19 vaccine mandates, implement a mixed member proportional electoral system, to close down all privately owned long-term care facilities and to stop the construction of new highway projects.

[172] Despite edging out the NDP for second place in the popular vote, the Liberals only gained one seat and failed to regain official party status.

The official results, certified by Elections Ontario, are as follows: The robustness of the margins of victory for each party can be summarized in electoral pendulums.