BANGKOK, FEB. 12 -- Thailand has accepted a Laotian proposal for talks to end a 10-week conflict over a strip of remote hills that has cost more than 250 lives, a Thai spokesman said today.

On the border battlefield, 270 miles north of Bangkok, fighting died down after Thai air attacks on Laotian artillery bases that had been pounding Thai border villages.

In Bangkok, Thai Prime Minister Prem Tinsulanond responded positively to a letter from Laotian Prime Minister Kaysone Phomvihan.

Kaysone proposed that talks begin between military delegations to "immediately end the senseless loss of life among the fraternal Laotian and Thai people."

Prem replied that "in the spirit of brotherliness . . . we shall be pleased to welcome your military delegation on Tuesday, Feb. 16, 1988, in order to find ways to ease the tension," a Thai Foreign Ministry spokesman said.

Thai officials estimate that more than 200 Laotian soldiers have died in the fighting that broke out in November and that Thai losses are about one-third or one-fourth of those suffered by Laos.

Kaysone said the conflict "endangers peace and stability in the region," and the problem should be solved through urgent talks.

{The Laotian proposed that the two sides discuss an immediate cease-fire, appoint experts to settle the dispute over border demarcation and ask the United Nations to help carry out settlement terms, the Manchester Guardian reported.}

"This is a good intent," Prem replied, adding that the talks should be "consultations on legal and moral grounds, which will be considered as the basis for subsequent negotiations."

Prem said that Thailand had acted only in defense of its territory, "based on widely recognized treaty evidence and relevant maps."

The dispute over a 27-square-mile strip of land stems from differing interpretations of a 1907 border agreement between Thailand and France, which then ruled Laos as a colony.

The fighting quieted today, but military sources said that Thai F5E fighter-bombers struck yesterday at Laotian artillery bases that had been firing on Thai border villages.

Laos' official radio said that the planes hit Na Kok village, killing and wounding "a number of people" and "nearly 20 buffaloes and cows." The Laotian broadcast also charged that "Thai reactionary troops" had "indiscriminately pounded" at least seven villages in Laos with artillery fire.