Normally, the assembly charters two trains to ferry staff to and from the Alsace city for the monthly session.
But a Parliament spokesperson told this website that it had been forced to cancel the Thalys charter trains, due to leave Brussels on Monday, and had replaced them with buses.
"The trains, basically, transport most of the members of the staff who must go to Strasbourg but they are affected by the strike because part of the trip is in Belgium," he said on Friday.
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The use of trains to transport its employees is preferable, he said, as, when compared with planes and cars, they "reduce costs and the environment effect."
However, the buses will take five or six hours to get to Strasbourg, he said.
With the ongoing strikes into their ninth day on Friday, one parliamentary source described the situation in the country's rail transport sector as "approaching total anarchy."
Talks between the Belgian rail management and trade unions have so far produced stalemate with the prospect of the strike spilling over well into next week.
International services, including Thalys trains, have been affected, and there has been major disruption in Belgium.
There are fears that some staff will opt to remain in Brussels rather than travel to France, which is also in the grip of major industrial strife.
Next week is a particularly busy week for the Parliament, with a new EU plan to address the root causes of migration being presented by the Commission and debated in plenary on Tuesday.
Also due for debate is the "migration compact", prepared by Commission First Vice-President Frans Timmermans and EU foreign policy chief Federica Mogherini.
This foresees using EU funds to promote private investment in migrants’ countries of origin, particularly in Africa.
MEPs will also discuss new plans by the Commission to set up uniform, efficient legal immigration procedures for those entitled to stay as well as an action plan for integration of third-country nationals.
On Wednesday, MEPs will debate the state of democracy in Turkey after 138 members of the Turkish Parliament had their immunity lifted.
The first results of the Commission's €315bn investment plan for Europe will also be debated.